Fertilize hydrangea: When and How to Fertilize Hydrangeas

When and How to Fertilize Hydrangeas

Hydrangeas are beloved for their large flower heads and attractive colors. Welcome them to your garden as a glorious focal point or for showy cut flowers. They are easy to love and grow across most of the United States, but need a little extra care in the realm of fertilizing. Be sure to follow these guidelines for how to fertilize hydrangeas a few times a year. Use these tips to welcome even more lush blooms throughout summer and fall and keep foliage healthy.

Before fertilizing, it is helpful to know the type of hydrangea you’re growing. The three most popular varieties are panicle, smooth, and bigleaf. This guide will stay rather general and offer a section on changing the flower color of bigleaf varieties at the end. Follow this advice to learn which fertilizers are best for hydrangeas, and when and how to fertilize these plants to ensure that they grow to their fullest potential.

Types of Fertilizer for Hydrangeas

Hydrangea fertilizers come in three main forms: liquid, granule, and compressed spikes. All three offer different benefits, albeit only slightly:

  • Liquid: Quickly absorbed by the plant’s roots and leaves, liquid fertilizers are good for a quick boost of nutrients. They come either as a concentrate that can be diluted with water or ready-to-use. Follow the directions on the container, which will likely either direct the user to spray it on the plant’s foliage or pour it around the base of the plant.
  • Granules: Able to dissolve in water and be poured on soil or sprinkled around the plant’s base, granules are one of the most popular and readily found fertilizer types. Work these time-release, polymer coated granules into the soil around the base of the hydrangea plant. Let them dissolve slowly. Their nutrients are fairly long-lasting.
  • Spikes: Also good for long-term fertilizer, spikes are compressed so that they can be easily pushed into the soil around the base of the plant. Spikes gradually dissolve over two or three months. Note that spikes will only feed the plant in the exact spot of placement and if placed too close to base, can burn plant.

Organic vs. Inorganic Fertilizers

Many fertilizers meant for feeding hydrangeas contain chemicals. Still, a few of them have natural ingredients. Both boost the health of the plant and encourage blooms that are exceptionally huge and beautiful.

  • Inorganic: Containing chemical and synthetic nutrients, inorganic fertilizer is made in a lab with the intention of producing specific growing results. These specifications include larger blooms or an increase in their number, or an increased acidity level, which hydrangeas are fond of. Inorganic fertilizers might also have time-released ingredients, which dissolve slowly, and depending on the brand, feed the hydrangea plant over a period of weeks or months.
  • Organic: The choice to go organic with fertilizer is the gardener’s. While organic fertilizers have the benefit of not adding chemicals to the soil, they may not be as strong as inorganic fertilizers. Consider using organic fertilizer to increase soil health and add more nutrients. They may contain earthworm castings, poultry manure, compost, or other natural ingredients. A combination of sulfur, compost, and peat moss is proven to be a good organic mix for hydrangeas.

Which Inorganic Fertilizer to Choose

When shopping for fertilizer, examine the labels for the amounts of nitrogen (N), phosphorus (P), and potassium (K). Typically hydrangeas thrive when fed an all-purpose, balanced fertilizer like a 10-10-10 N-P-K or 12-4-8 N-P-K. To increase the size and quantity of hydrangea blooms, consider a fertilizer with more phosphorus.

Phosphorus is the middle number, so a fertilizer labeled 10-20-10 will do. If exploring slow-release granular fertilizer, choose one that is labeled “bloom boost,” which may also have a higher level of phosphorus.

How to Fertilize

Learning how to fertilize hydrangea shrubs is equally as important as the type of fertilizer chosen. Apply a slow-release chemical for shrubs and trees once a year. Depending on the variety, a balanced time-release fertilizer can be applied a few times a year, in spring and early fall. Take care not to apply too much fertilizer as it could burn the leaves. Too much nitrogen could encourage more leaf growth, longer stems, and less flower growth.

In March, May, and July, lightly apply a fast-release fertilizer, spreading it around the drip line of the branches—not the base. Water well. When using a slow-release fertilizer, lightly cover it with soil to activate it. Sometimes fertilizer might not be necessary in the summer, since most hydrangeas bloom better when they are a little hungry for nutrients. If leaves begin to yellow and appear unhealthy, add a light dose of liquid iron twice a year or another fast-acting fertilizer to remedy the issue.

When to Fertilize

Hydrangeas benefit from applying fertilizer in mid-to-late spring and additional intervals recommended by the manufacturer of the fertilizer you choose to use. While the first set of flowers start to fade, apply the same slow-release bloom-boosting fertilizer used in spring. Time-release fertilizers usually need to be reapplied every three months. Other types typically need to be applied every one or two weeks. Then, in late winter, just before hydrangeas come back from dormancy, feed them another dose of an all-purpose fertilizer.

How to Change the Color of Bigleaf Hydrangeas

Endless Summer varieties, like other bigleaf hydrangeas, bloom in shades of blue or pink. Color depends on the soil pH. To change the color of these flowers, add small amounts of sulfur or lime to the fertilizer. Treat hydrangeas with sulfur, a soil acidifier, to lower the pH so that flowers remain or become blue. Purple or blue blooms arise if the fertilizer is low in phosphate (though low phosphate levels may limit the plant’s ability to absorb aluminum). To shift their color to pink, raise the soil pH by treating bigleaf hydrangeas with lime.


While other colors of hydrangeas can be changed, white hydrangeas are not able to change color.

Why My Hydrangea Is Not Blooming and How to Fix It

8 Reasons Why Hydrangeas Are Not Blooming


Nadia Hassani

Nadia Hassani

Nadia Hassani is a gardening expert with nearly 20 years of experience in landscaping, garden design, and vegetable and fruit gardening. She became a Penn State Master Gardener in 2006 and is a regular contributor to Penn State Master Gardener publications. She gives gardening talks about growing specialty produce for ethnic cuisines, authors two gardening and growing blogs, and created the taxonomy for the plant encyclopedia for Better Homes & Gardens.

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Editorial Process

Updated on 08/23/22

Reviewed by

Debra LaGattuta

Reviewed by
Debra LaGattuta

Debra LaGattuta is a gardening expert with three decades of experience in perennial and flowering plants, container gardening, and raised bed vegetable gardening. She is a Master Gardener and lead gardener in a Plant-A-Row, which is a program that offers thousands of pounds of organically-grown vegetables to local food banks. Debra is a member of The Spruce Gardening and Plant Care Review Board.

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The Spruce / Evgeniya Vlasova

When the hydrangea you planted in your landscape does not bloom at the same time as your neighbor’s hydrangea, it’s not necessarily a reason to worry—there are many different types of hydrangeas, and they don’t all bloom at the same time.

To determine the bloom habit of your hydrangea, first determine the type of hydrangea you have. The most common types grown in North America are:

  • Bigleaf hydrangea (Hydrangea macrophylla), which includes the mophead and lacecap hydrangeas
  • Mountain hydrangea (Hydrangea macrophylla subspecies serrata)
  • Panicle hydrangea (Hydrangea paniculata)
  • Smooth hydrangea (Hydrangea arborescens)
  • Oakleaf hydrangea (Hydrangea quercifolia)
  • Climbing hydrangea (Hydrangea petiolaris)

Another determining factor for hydrangea bloom time is the local climate. In the South, an oakleaf hydrangea flowers in early summer while in a cooler location in the United State Midwest or Northeast, it won’t start blooming until later in the summer.

If your hydrangea is not blooming, use the following checklist to troubleshoot and fix the cause.

1. Potted Gift Hydrangeas Usually Don’t Rebloom

Planting hydrangeas in the garden that have been grown and sold as gifts for Easter or Mother’s Day, often in small pots wrapped in a decorative foil, usually have a low chance of survival, let alone blooming. They have been forced into early bloom and are conditioned with lots of fertilizer; often, the hydrangea variety is one that is not hardy for your area.

The Spruce / Evgeniya Vlasova

2. Hydrangea Is Not Hardy In Your Climate

Hydrangeas vary in their hardiness, with bigleaf hydrangeas being the least hardy and panicle hydrangea being the most cold tolerant. If a hydrangea does not bloom, it could be that it is not suitable for your hardiness zone. While the root system might survive winter, if the variety produced buds on last years stems, the buds are killed by extreme cold, and thus, no blooms the following year.

The Spruce / Evgeniya Vlasova

3. Late Spring Frost

If the hydrangea is suitable for your climate zone, an unseasonably late spring frost or cold temperatures can kill or stunt the flower buds and result in a summer without blooms.

Keep an eye on the weather forecast in the spring and when frost is in the forecast, protect the hydrangea with burlap, sheets, or blankets for the night. Remove the coverings promptly the next morning and repeat as needed.

The Spruce / Evgeniya Vlasova

A Guide to Hydrangea Winter Care

4. Inadequate or Too Much Sunlight

To bloom, most hydrangeas require at least three to four hours of direct sunlight per day, ideally in the early morning or dappled sunlight in the afternoon. Locations with full afternoon sun are usually too intense. Both too little and too much sunlight can affect blooming. The panicle hydrangea can tolerate the most sun exposure.

5. Timing of Pruning

When it comes to pruning hydrangeas, timing is everything. And, again, it all depends on the type of hydrangea and when it sets its flower buds. Some types of hydrangeas set buds and bloom on old wood, others on new wood, and some on a combination old and new wood. Without knowing which hydrangea you are pruning, you risk removing the stems that will produce buds and blooms. Make sure to follow the instructions for pruning hydrangeas according to type.

The Spruce / Evgeniya Vlasova

6. High-Nitrogen Fertilizer

When hydrangeas are given fertilizer with a high nitrogen content, they produce mainly foliage and no flowers. What they need is a fertilizer that is high in phosphorus (P) because phosphorus promotes blooming. This type of fertilizer is often labeled as a bloom booster and it should be applied in the early spring and again in mid-summer.

Hydrangeas do best in soil with an acidic pH. You can use a fertilizer for acid-loving plants but be aware that might have a higher nitrogen content.

7. Lack of Moisture

If your hydrangea does not bloom, it could be that it was watered insufficiently or under drought stress the summer before. Think back to last summer’s weather conditions to determine if this could be the cause.

To prevent this from happening again, make sure the soil is continuously moist but well-drained.

8. Newly Planted Hydrangea

It can take a hydrangea a couple of years to become fully established. If you provide the necessary care and plant it in the right location, it might just take time and patience to see it bloom.

The Spruce / Evgeniya Vlasova

Hydrangeas: The Shrubs of Summer



How to Fertilize Roses for Beautiful Bushes

An important part of caring for roses is regular and proper fertilization as roses are heavy feeders. Roses need the three macronutrients—nitrogen (N) for foliage growth, phosphorus (P) for root growth, and potassium (K) for flower formation—plus various micronutrients, including iron, calcium, and magnesium.

Below, find a complete guide to fertilizing your roses, including when the best time of year to fertilize is, how exactly to fertilize the buses, plus how to use organic or inorganic fertilizer,


To have a baseline and take the guesswork out of which nutrients and how much the soil needs, it’s always a good idea to get your soil tested. A soil test will also tell you whether the soil pH is suitable for roses. Roses prefer neutral to slightly acidic soil, a pH of 5.5 to 6.5, so you might have to raise the soil pH by adding limestone.

How and When to Fertilize Roses

When and how much to fertilize established roses depends on the type of rose—tea roses, for instance, require more nutrients than shrub roses—and the length of the growing season. Here are some guidelines:

  • Start fertilizing when the first leaves appear and there is no more danger of severe spring frosts. After that, the fertilization schedule should be based on how long and how often the rose is blooming.
  • A rule of thumb is to fertilize after each bloom cycle but to gradually reduce the amount of fertilizer by half each time. Stop fertilizing six to eight weeks before the first average frost date in your area. The reason behind this is that you don’t want the plant to produce a lot of soft new growth late in the summer that will be damaged by cold weather in the fall and winter.
  • After the roses have gone dormant, you can fertilize them again. Adding fertilizer will not harm the plants at this point but will get them ready for the next spring.
  • Container roses may need more frequent fertilizing than those growing in soil. Fertilize them at the intervals described above, and any time the foliage starts to look a bit chlorotic, which indicates nutrient deficiency.
  • It’s helpful to keep a record of when you fertilize your roses using a calendar or a task reminder app.


Newly planted roses should only be fertilized with phosphorus to encourage the development and establishment of the roots. Wait until the rose has bloomed before adding any other fertilizer.

The Difference Between Organic and Inorganic Fertilizer

There are two basic types of rose fertilizers, organic and inorganic. Most organic fertilizers are naturally released to the soil more slowly and over a longer time period than inorganic fertilizers. The exception are inorganic controlled release fertilizers, which release nutrients over several months depending on soil moisture and temperature.

Using Organic Rose Fertilizers

Aged or composted manure, worked into the soil about two to three inches deep, is an excellent source of all three macronutrients, N, P, and K. Always make sure the manure is “aged”, i.e. not fresh, otherwise its high nitrogen content will cause fertilizer burn in the plants.

Bone meal adds phosphorus to the soil. Mix it deeply into the soil, not only because it does not enter the soil easily with watering but also to prevent wildlife from being attracted by the smell and digging up the soil. Add one heaping tablespoon per rose plant.

Dried blood meal is also a good source of nitrogen. Apply about one tablespoon around each plant. Too much nitrogen can burn the roots so don’t apply too much.

If you don’t mind the smell, liquid fish fertilizer or fish emulsion, diluted in water according to the product label, is a fast-release organic source of nitrogen.

Other organic fertilizers include:

  • Greensand for potassium and micronutrients
  • Rock phosphate for phosphorus, calcium, and micronutrients
  • Alfalfa meal as a balanced fertilizer
  • Seaweed for nitrogen and phosphate


Epsom salt is often praised as an organic fertilizer and pesticide. But, the use of Epsom salt as a rose fertilizer to supply the soil with magnesium has not been scientifically proven. Applying Epsom salt can in fact harm the plant.

Rose bush

Thomas Winz / Getty Images 

Using Inorganic Rose Fertilizers

There are special rose plant foods that are tailored to the higher phosphorus needs of roses, with an N-P-K ratio such as 18-24-16. But, you don’t necessarily need to get a special fertilizer for your roses. You can also use a general complete fertilizer with a high phosphorus ratio, such as 5-10-5, 4-8-4, or 4-12-4.

For the amount, follow the directions on the fertilizer label. The general rule of thumb for complete fertilizer is half a cup per plant.

Since inorganic fertilizers are more concentrated than organic fertilizers, don’t pile it up on dry soil, which can cause burning. Instead, spread the fertilizer thinly and evenly around the plant and lightly rake it into the damp or wet soil. The best time to apply the fertilizer is just before it rains or before watering. Keep the fertilizer away from the canes and the graft union, and water the plants well after applying fertilizer.

For controlled-release fertilizer, the rule of thumb is about half a cup per plant, unless specified otherwise on the product label.

Always water roses after applying fertilizer

mustafagull / Getty Images

How to Grow Tree Hydrangeas (Panicle Hydrangeas)

Tree hydrangeas (Hydrangea paniculata), also known as panicle hydrangeas, are fast-growing flowering shrubs with an upright growth habit. These plants provide late summer blossoms when few other bushes are in bloom. The shrub has oval, toothed, dark green leaves, and it produces cone-shaped flower panicles that stretch around 7 inches long with clusters of small, creamy white blooms. The flower heads take on a pinkish hue over time before fading to tan or brown for the winter. Tree hydrangeas can be planted in the spring after the threat of frost has passed, as well as in the early fall. Note that they are toxic to both humans and pets, so take care where you plant them.

Click Play to Learn How to Grow and Care for Tree Hydrangeas

Common Name Tree hydrangea, panicle hydrangea, peegee hydrangea
Botanical Name Hydrangea paniculata
Family Hydrangeaceae
Plant Type Shrub
Mature Size 8–15 ft. tall, 6–12 ft. wide
Sun Exposure Full, partial
Soil Type Loamy, well-drained
Soil pH Acidic, neutral
Bloom Time Summer, fall
Flower Color White, pink, green
Hardiness Zones 4–8 (USDA)
Native Area Asia
Toxicity Toxic to people, toxic to pets

Tree Hydrangea Care

Tree hydrangeas are fairly easy to care for and can grow in a variety of conditions. They are tolerant of pollution and urban conditions, as well as of salt in the soil. They can handle being planted near roadways. Just make sure your planting site has good soil drainage and is sheltered from strong winds, which can damage the stems. 

These shrubs don’t typically have many pest or disease problems, especially when they’re grown in an environment they like. You might occasionally see aphids or mites on the foliage, which often can be mitigated with a strong blast of water from the hose. Expect to water and feed your shrub regularly, and prune to maintain its shape.

The Spruce / Ariel Visci 

The Spruce / Ariel Visci

The Spruce / Ariel Visci 

The Spruce / David Beaulieu


Tree hydrangeas grow well in full sun to partial shade, meaning at least four hours of direct sunlight on most days. In hot climates, they will benefit from some afternoon shade.


These shrubs can handle a variety of soil types, including sandy, loamy, and even clay provided that there is good drainage. They prefer organically rich soil with a slightly acidic to neutral soil pH, though they also can tolerate slightly alkaline soil.


Tree hydrangeas thrive in lightly moist but not soggy soil. Be careful not to overwater, which can cause root rot and other diseases. However, allowing the soil to dry out too much can cause the foliage to wilt and eventually damage or kill the plant.

Temperature and Humidity

These plants have good cold tolerance within their growing zones, especially compared to many other hydrangea species. In hot weather, it’s important to make sure they are well-watered to prevent stress on the plant. Humidity typically isn’t an issue as long as their water requirements are met.


Feed tree hydrangeas twice a year in the early spring and in the fall immediately after the flowers have faded, using a fertilizer formulated for shrubs and trees. Over the summer, the shrubs will benefit from an application of compost.

Types of Tree Hydrangea

There are several varieties of tree hydrangeas:

  • Hydrangea paniculata ‘Grandiflora’ grows to 25 feet with a 10-foot spread and has pure white flowers.
  • Hydrangea paniculata ‘Limelight’ grows 6 to 8 feet tall and 5 to 7 feet wide and has a greenish color in its flowers.
  • Hydrangea paniculata ‘Big Ben’ grows 6 to 8 feet tall and 5 to 7 feet wide and is valued for having flowers of a deeper pink color.
  • Hydrangea paniculata ‘Bobo’ is a dwarf variety, growing only about 3 feet tall and wide.
  • Hydrangea paniculata ‘Pinky Winky’ grows to a maximum height and width of 8 feet and is known for its bicolor flower heads (pink on the bottom, white on the top).


This plant can be trained to grow as a small tree by judicious pruning. But it achieves its best form when grown as a large shrub with multiple stems. Blooms occur on the current season’s growth (new wood), so prune as needed in the late winter to early spring. Untimely pruning can sacrifice some of the flowers for that growing season. When kept in its shrub form, the shrub will bear larger flower clusters if you thin it to five to 10 primary stems.

To train the plant to grow as a tree, choose one main stem to secure to a sturdy stake. Prune away competing ground stems. Remove any shoots that emerge from your main stem from the ground to about 3/4 of the way up that stem. Continuously check for shoots around the base of the plant, and remove them as they pop up. Your main stem will continue to grow with foliage at the top, taking on the look of a trunk. It can require two or more years before a true tree shape is accomplished.

Propagating Tree Hydrangea

You can propagate tree hydrangeas from cuttings. The best time to do this is in the spring or early summer before the plant begins to flower. Cuttings not only are an inexpensive way to produce more plants, but they also allow you to make more of a particular tree hydrangea variety that you like. Here’s how:

  1. Choose a healthy stem that has not flowered yet, and cut off a piece that’s about 6 inches long with sharp, sterile pruners.
  2. Remove the lower leaves on the cutting, and cut the other leaves to half their length.
  3. Dip the cutting in rooting hormone, and immediately plant it in a small container filled with vermiculite, coarse sand, or a combination of the two.
  4. Water the cutting well, making sure the soil is moist but not overly wet. Place a plastic bag or dome over the container to retain moisture, taking care to make sure the plastic doesn’t touch the cutting.
  5. Place the container in an area that gets bright but indirect light. Keep the soil lightly moist but not soggy. Expect the cutting to take about a month to develop a root system, after which it’s ready to be transplanted.

How to Grow Tree Hydrangea From Seed

Though it is possible to grow tree hydrangeas from seed, keep in mind that it is quite difficult. That’s why most gardeners go with propagating through cuttings.

If you do choose to propagate through seed, let several flowers fade on the plant. Harvest these flowers in a paper bag after a few months. This gives them time to dry out. Store the flower heads in the bag for another week to ensure they are dry. At that point, give the bag a good shake. This will loosen the tiny seeds from the flower heads. Keep in mind these seeds are about the size of a grain of salt or pepper, so they will be tough to find.

You can sow the seeds directly into the ground in the fall, or you can choose to hold onto them through the winter months and start them indoors in the early spring. Fill a container with potting soil, and sow the seeds on the surface; do not cover them with soil. Keep the soil lightly moist. Place the container in a sunny spot, and expect germination of the seeds within a matter of weeks.

Potting and Repotting Tree Hydrangea

Container-grown tree hydrangeas will likely need to be repotted every year or two as they grow, depending on your pot size. The best time to repot hydrangeas is during the spring when the plant is no longer dormant but isn’t yet stressed from the heat of summer. It’s also OK to repot a hydrangea during the winter to allow it more time to adjust to its new surroundings.

Choose a container that is a few inches larger than the previous one. The best container material is unglazed clay to allow excess soil moisture to evaporate through its walls. If you are potting a tree hydrangea for the first time, go with a pot of 8 to 12 inches in diameter. The best growing medium is well-mixed compost with a fertilizer designed for hydrangeas. When planting, cover the roots and stem with the soil. Keep the container in the shade for the first few days, gradually introducing it to more sun to acclimate the plant to the light and humidity. Keep the soil moist but not waterlogged.


To help your plants through the winter, keep the soil moist right up until the ground freezes. Cover the roots with 3 to 4 inches of mulch, taking care to remove it as soon as the temperatures warm up.

Common Pests & Plant Diseases

Hydrangeas of all varieties can fall prey to aphids, rose chafers, and scale. Organic pesticides can help get rid of these pests. Slugs and snails will also be tempted to nibble on the plant. Remove the slugs and snails by hand, and deal with heavy infestations with natural methods, such as slug pellets.

Moreover, hydrangeas are prone to fungal diseases, such as powdery mildew, blight, and leaf spot, all of which can be treated with an appropriate fungicide. The plants might also fall victim to a variety of viruses, which can cause leaves to turn yellow and a plant to lose its flowers. The only real treatment is the removal of affected plants.

How to Get Tree Hydrangea to Bloom

Tree hydrangea flowers feature rays of four to five petals that stretch around 1 to 3 inches across. Deadheading, or removing the spent blooms, can help to encourage further flowering, though many gardeners opt to leave the dried flower panicles on the plants through winter for visual interest in the garden.

With any sort of hydrangea, there are a few things to look for if the plant is not blooming. Start by ensuring that the ground is moist but not overly wet. Hydrangeas also need some sunlight but not too much, so make sure they remain out of harsh light. This is especially relevant if you live in a hot climate. Furthermore, hydrangeas tend to bloom better when they have more acidic soil, so test your soil to see whether amendments are necessary. Also, don’t fertilize too much, as overfertilization can lead to lush foliage but few blooms.

Common Problems With Tree Hydrangea

Tree hydrangeas are fairly easy to care for, as long as you get their growing conditions right. They’re somewhat susceptible to pests and diseases, but they’re also resistant to salt and pollution in their environment. The following are some common issues to watch out for.

Leaves Turning Black/Brown

Black or brown spots on foliage can often be a sign of a fungal disease. If the affected area is small, you might just want to prune it off. Or you can use a suitable fungicide.

Leaves Turning Yellow

Yellow foliage can often be a sign of unsuitable moisture conditions—both overwatering and underwatering. The soil should never be soggy or be allowed to dry out completely. Yellowing also can be a sign of too much fertilizer, as well as some diseases.

Article Sources

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  1. Hydrangea paniculata. NC State Extension.

How To Fertilize Hydrangeas For Bigger Blooms

Knowing when and how to fertilize your hydrangeas can certainly make a huge difference in both the quality of their bloom cycle, and the overall amount of blooms that can cover the plant.

When it comes to perennial flowering shrubs, it is hard to beat the incredible hydrangea! With massive blooms and bright, colorful foliage, it is a popular choice among gardeners. And can they ever fill a space with interest!

Add in the hydrangea’s ability to grow in a wide range of climates (growing zones 3 – 7), and its easy to see why they grace the landscapes of so many homes.

One of the biggest challenges for gardeners is getting their hydrangeas to bloom big every year. But with proper care and a timely dose of fertilizer, that process is easier than you think!

But as popular as the hydrangea is, it is also one of the most misunderstand plants around. In fact, it has certainly frustrated many a gardener when it comes to getting them to bloom consistently, year after year.

The good news is that with just a few simple hints and tips, getting your hydrangeas to bloom on cue is actually a fairly easy process. With that in mind, let’s take a look at the basics of hydrangea care, including when and how to fertilize them for amazing blooms!

The Simple Keys To Big Blooming Hydrangeas

Getting your hydrangeas to bloom strong and consistently all starts with knowing what type of hydrangea you have. Different types of hydrangeas require different care, especially when it comes to pruning.

As you will see below, that is often the biggest issues when it comes to blooms that are weak, or fail to appear at all.

It is hard to find a more beautiful sight than that of a hydrangea’s bloom. Hydrangeas can add amazing color and interest to the landscape, especially when the plant is engulfed in flowers.

Once you know the type of hydrangea you are growing, it makes maintenance a breeze. You will know exactly when to prune it back, and even more, when to provide it with a few key boosts of fertilizer to promote big blooms!

Knowing Your Hydrangea Type…

It is important to first note that quite often, a hydrangea struggling to bloom might have nothing to do with the soil quality or lighting. Or, how you water or fertilize it for that matter.

The simple fact is, if planted in the proper light and in average to good soil, hydrangeas will normally bloom without difficulty. So why do so many have trouble getting them to bloom or bloom regularly?

Believe it or not, and more often than you would think, when hydrangeas lack in flower power, it is usually because they are being pruned at the incorrect time.

When To Prune –

How To Fertilize Hydrangeas For Bigger Blooms

Late Spring / Early Summer Blooming Hydrangeas –

What To Do With Hydrangeas After They Bloom

Many hydrangea varieties need to be pruned right after they complete their blooming cycle. Bigleaf, Oakleaf and even climbing hydrangeas all fit into this category.

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They all produce the next year’s flowers on the growth that occurs after they bloom. That means if you prune late or cut them back in the fall, you also are cutting of next year’s flowers.

Late Summer / Fall Booming Hydrangeas –

What To Do With Hydrangeas After They Bloom

Smooth or Panicle varieties on the other hand grow on new growth in the same year. Since they bloom in late summer, you can prune these in late winter or very early spring. The key with these varieties is to prune before they grow again in the spring.

One final note on pruning before we move on to fertilizing. Less is more when it comes to cutting back hydrangeas. They actually do not require heavy pruning to keep blooming. Pruning is best performed only to hold shape and keep the bushes from becoming overly large. See: Fall Hydrangea Care


So now it all comes down to giving your hydrangeas the power and nutrients they need. Fertilizing that not only help them to survive, but thrive!

Proper fertilizing can increase both the size and intensity of a hydrangea’s blooms. The key to success is applying fertilizer at the right time.

Fertilizing will improve both the power and intensity of your blooms, especially when you apply it at the right time. For best results, hydrangeas need fertilizing at two critical times. The first is just before or as they are coming out of dormancy in early spring.

The second time to fertilize your hydrangeas is right before they begin to bloom and flower. But here is the real key to success – each time frame calls for a different type and method of fertilizing for best results. With that in mind, here is a look at both:

Early Spring Fertilizing

Fertilizing in the early spring helps a hydrangea to green and power up for the season. This fertilizer needs to be a low and slow type that feeds the bush at a steady pace.

Accomplishing this can be done in several ways, either with a heavy top dressing of fresh compost, or by using a good, all-purpose slow release granular fertilizer at the base of the plant. Product Link : Lilly Miller All Purpose Growing Food 10-10-10

A thick mulching of fresh compost in the spring can provide the early nutrients hydrangeas need. A 4 to 6 inch layer of compost under the plant will do the trick. You can also use an all-purpose 10-10-10 fertilizer to do the job.

Both act to slowly release nutrients into the soil below. This slow pace is perfect for steady growth, which is also very important to help and spur on the upcoming bloom cycle.

If you were to use too powerful of a fertilizer, or one that did not slowly release its nutrients, it can create too much foliage growth. Unfortunately, with all of the power going to growing leaves, little remains for bigger blooms.

Fertilizing Before They Bloom

The second time a fertilizer should be used on hydrangeas is right before they bloom. Again, when they bloom will depend on what type you are growing, so that will play into the picture.

If your hydrangeas bloom in late spring and early summer, you want to give the second dose just before they unfold their blooms. The same goes for those that bloom in late summer / early fall – once again giving them their second dose just as they begin to flower.

This dose of fertilizer for this will be different than the initial spring slow and low dose. Instead of a balanced 10-10-10 style, you will want to apply a fertilizer that contains a higher level of phosphorous in the ratio.

Right before your hydrangea comes into bloom, use a fertilizer with a high phosphorus content. This will promote strong, vibrant blooms.

Phosphorus is a key element for bloom power. And supplying this right as the plant goes into bloom will increase the overall performance of your hydrangea’s flowering cycle. A 10-30-20 (N-P-K) ratio works incredibly well at this point. Product Link : Bloom Booster Liquid Fertilizer

It still provides adequate nitrogen and potassium, but the increase in phosphorous will help for bigger, brighter blooming. When applying this, water the fertilizer in well to the soil to speed the process of absorption.

Big Blooms Forever – How To Fertilize Hydrangeas

The one-two fertilizing punch in early spring and before your hydrangeas bloom will work wonders in producing heavy flowers. And with each passing year, it will continue to work even more as the plant builds lasting strength.

One of the biggest keys of all is to stay the course. The more consistent you are in giving your hydrangeas the food they need, the more you will be rewarded with beautiful blooms. Here is to getting the most from your hydrangeas this year!

This Is My Garden is a garden website created by gardeners, for gardeners. We publish two articles every week, 52 weeks a year. Sign up today to follow via email, or follow along on Facebook here : This Is My Garden. This article may contain affiliate links.

Fertilizing Hydrangeas | Plant Addicts

Hydrangeas grow best if they are fertilized once or twice in the summer. Although some authorities recommend special fertilizer mixes to get the maximum results, hydrangeas do amazingly well with a more relaxed approach.

Either chemical fertilizers or organic matter can be used successfully. Since an organic method of applying manure and/or compost around the roots, produces excellent results and also improves the condition of the soil, this would be an excellent first line of attack. Organic additions to the soil can also be combined with a shot of chemical fertilizer for maximum effect.

If chemical fertilizers are used, applying a slow-release, balanced fertilizer once a year is probably the simplest solution. There are many slow-release fertilizers on the market. If you can find a fertilizer formulated for shrubs and trees, this fertilizer would work well on hydrangeas. If Osmocote is used, the granules MUST be covered with soil for the fertilizer to release properly.

However, slow-release is certainly not the only way to fertilizer hydrangeas. A less expensive fast release fertilizer such as a 10-10-10 will work just as well if applied twice during the summer. If you are looking for a fertilzing routine tailored to your specific conditions, a soil sample should be taken and the fertilizer and trace elements matched to the needs of your soil.

Don’t fertilize after August. Fall is the time for hydrangeas to begin preparing for dormancy. Fertilizing at this time may stimulate new growth that will be too tender to withstand the winter. In the South, a late May application and another in July would be about right. More northern areas may wish to fertilize only once in June or July.

The amount of chemical fertilizer used per plant will vary with the size of the plant and it’s root system. (Use less fertilizer for hydrangeas in a container.) Over-fertilization can be much more detrimental than under-fertilization. “Fertilizer burn” can occur when too much fertilizer is applied, resulting in a drying out of the roots and damage or even death of the hydrangea.It is much, much better to err on the side of too little fertilizer than too much. When roots are burned, the first sign is often scorched looking leaves. If overfertilization is severe, the plant may just wilt and die.

If you are a beginner at growing plants, it may be helpful to know that a very small plant which is planted in the ground will take about 1/8 – 1/4 cup of fertilizer. When fertilizing hydrangeas in pots, be careful to apply a fertilizer that will not burn the roots (such as a slow release or a liquid fertilizer). A very large shrub in the ground will take 2 – 3 cups spread around the drip line of the branches (not next to the trunk). This is a very loose estimate, so please read the directions on the fertilizer before applying it.

If a liquid fertilizer is used, it should be applied every month for both plants in pots and in the ground.

Never fertilize a plant with a chemical fertilizer if the plant looks sick or wilted. If a plant is struggling due to a disease or root problems, the fertilizer will only add stress to it’s life. Try to cure the problem before adding fertilizer.

Fertilizing Hydrangeas Organically

For an organic approach, many gardeners use commercial manure on the soil around hydrangeas. Excellent results have been reported by visitors to this site after using composted manure. Commercial manure or compost can be applied yearly around the base of the hydrangea. As with chemical fertilizers, do not apply it right next to the trunk or stems emerging from the ground.

Myths About Fertilizing Hydrangeas

Fertilizing a healthy hydrangea will not cause it to bloom. If a hydrangea will not bloom year after year, there is a problem unrelated to the fertilizer. There are several reasons why hydrangeas won’t bloom, but a lack of fertilizer is not one of them. This is unfortunate since we would all like a simple solution to the common problem of hydrangeas failing to bloom.

Fertilizer will not change the color of the blooms. It’s possible that extra ingredients added to fertilizers might change the color, but the fertilizer itself doesn’t have this power.

Here is more information on how to change the color of hydrangeas.

When leaves on a plant turn yellow WITH green veins (as in the image on the right which is from the Texas A & M Aggie site), regular fertilizer will not improve the color. This condition usually means the plant needs iron. Yellow leaves and green veins are often the result of iron chlorosis. This is the result of either an iron deficiency or iron unavailable for plant uptake.

Liquid iron is inexpensive and can easily be poured or sprayed on the plant. (Any brand will do) The results is often quite dramatic.

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Shop Popular Hydrangeas

✅ How to feed hydrangea in the spring for active growth and lush flowering: fertilizers, rules, terms of


  1. than feed the hydrangea in spring
    • Mineral and organic fertilizers
    • Ready -made compositions
    • Folk remedies


  2. Rules for adding tops
  3. Fertilization timing
  4. How to feed hydrangeas in spring for lush flowering
  5. How to feed hydrangeas to change color
  6. Useful tips

Hydrangea is a beautiful moisture-loving plant. You can achieve lush flowering if you do not allow the soil to dry out and properly organize flower care.

How to feed hydrangea in spring

Hydrangea needs macro- and microelements, especially iron. Acid soils are best for growing. Top dressing in the spring and in the subsequent period is carried out taking into account the needs for nutrients. Shrub needed:

  • nitrogen, which is responsible for a set of green mass, succulent leaves and powerful shoots. It is important not to overdo it, otherwise the growth of greenery will come at the expense of flowers;
  • phosphorus, provides a large number of flowers and their size, as well as the duration of flowering and the ability to overwinter;
  • potassium ensures better flowering in spring, and in autumn it is responsible for frost resistance of shrubs and provides energy for budding in the future;
  • trace elements responsible for various processes. Magnesium is important during the period of bud setting, affects the brightness of the color of flowers. Iron deficiency increases the risk of chlorosis, etc.

When properly fertilized in spring and summer, hydrangeas produce vibrant green foliage, early bud formation and long, lush blooms. The bush is less sick, endures temperature extremes and other adverse weather conditions.

An important addition: if hydrangeas are fed correctly during planting in the hole, nothing can be added to the soil for a couple of subsequent years.

Mineral and organic fertilizers

Feeding options are many. Some are more expensive, others require almost no costs. Flower growers insist that care is needed for all types of garden hydrangeas – paniculate, tree-like, large-leaved, and less common.

An approximate list of means by which top dressing of hydrangeas is carried out in the spring and in the future includes:

  • nitrogen fertilizer. Shown only in the spring, when the snow melts. If there is an excess of nitrogen in the soil, the foliage will be lush, and flowering will be poor and fast. From mineral fertilizers, you can use urea (15 g per 10 liters of water), ammonium nitrate (up to 30 g per bucket of water). From organics, chicken manure is suitable – the concentrate is prepared by diluting the manure with water in a ratio of 1:20, for making – 1:3. You can use mullein, nettle infusion, and also mulch shrubs with humus, compost, peat;
  • complex mineral supplements for hydrangeas. Nitroammophoska is suitable, in which 3 main elements contain 16% each. 20-30 g of the composition is taken on a bucket of water, 5 liters are poured under each bush. For fertilizer after flowering or in autumn, diammophoska is used, in which the content of nitrogen is reduced, and potassium and phosphorus – 26% each. The composition is diluted at the rate of 20 g per 10 liters. Considering that there are no microelements in the listed compositions, they are added separately in the form of humates;
  • phosphorus-potassium formulations. Used during the budding period to ensure lush flowering. The most popular top dressings are superphosphate (up to 20 g per 10 l), double superphosphate (the dose is halved), potassium sulfate (up to 20 g per 10 l). Instead of potassium sulfate, potassium salt or potassium magnesia is often used, which includes magnesium useful for hydrangeas;
  • humates. Improve the absorption of complex fertilizers by the plant.

Do not use wood ash for hydrangeas because it reduces the acidity of the soil. An exception is made when it is planned to get pink hydrangeas.

Ready compositions

Feeding the plant will be less trouble if you use more expensive specialized compositions containing a complex of necessary micro- and macroelements. Most Popular Known:

  • Fertika Kristalon with trace elements;
  • “Agricola” with humates and trace elements;
  • Bona Forte with vitamins, trace elements and succinic acid;
  • “Buyskie Fertilizers” in granules and powder with trace elements.

It is important to note that some compounds change the color of plants to blue.

Fertilizing hydrangeas in the spring with long-acting compositions is successful. Usually these are granules, which are added in dry form around the bushes to pre-prepared wells. It is enough to make an additive 1 time per season, and nothing more is required.

Folk remedies

Kefir can be used from unusual fertilizers for hydrangeas. On a bucket of water take 2 liters of kefir, sour milk, fermented baked milk. Another option is to use a yeast solution (mix 10 liters of water, 10 grams of yeast and 5 teaspoons of sugar) or live beer.

Acid food products that do not contain salt can be used. To strengthen the shoots, a slightly pinkish solution of potassium permanganate is used. It will prolong flowering and make flower heads larger. The effectiveness of improvised means loses to mineral fertilizer, but they are cheaper.

Fertilizing rules

Ornamental flowers require just as much attention as other crops on the site. Hydrangeas do not produce a crop, but ways to transform the site during their flowering period. Experienced gardeners when feeding hydrangeas are guided by the following rules:

  1. The first time after winter, fertilizer is applied when the snow has completely melted and the temperature has stabilized at a positive level. When the soil warms up to +4 … +6 degrees, the roots of the flower are ready to absorb the elements they need for development from the environment.
  2. Dry fertilizer for hydrangea is spread on the ground, and then loosening is carried out to a depth of 5 cm, followed by watering the soil.
  3. The use of slurries requires pre-moistening of the soil. The day before the application of the preparations, the bush is well watered so that the root system does not get burned, but intensively absorbs the useful components of top dressing.
  4. For spraying bushes on the leaf, the dosage is halved compared to the norms for irrigation. Spraying is scheduled for the evening or performed on a cloudy day so that the leaves do not get a sunburn.
  5. An overdose of preparations is also fraught with burns of the green part and roots.

Hydrangea prefers acidic soil, therefore fertilizers that reduce its acidity should not be used to feed the flower: manure, wood ash, etc. After 2 weeks, the flower is watered with compounds that strengthen the wood. If necessary, additionally acidify the soil. The next treatment of hydrangeas is carried out in late spring to accelerate the growth of shrub shoots. An approximate scheme for feeding hydrangeas:

  • from 10 to 18 April — nitrogen-containing preparations;
  • May – spraying with compounds with manganese, which strengthens the shoots and makes them flexible;
  • beginning of June – complex plant nutrition, which includes a set of components necessary for growth and development.

How to feed hydrangeas in spring for lush flowering

Fertilizing hydrangeas in spring is carried out to help the plant fully exit the winter dormancy phase. Nitrogen is responsible for building greenery and stimulating growth. The choice of nitrogen-containing fertilizers depends on the budget and size of the site, as well as the needs of the soil. The first time the shrubs are fertilized about 2 weeks after the snow melts. If until that moment the soil is not warm enough, the procedure is postponed. At this time, urea with potassium sulfate will help the plant. Dissolve 40 g of each substance in a bucket of water. For 1 landing, you will need 5 liters of the finished solution.

Organic substances can be used instead of chemicals. Liquid manure diluted with water in a ratio of 1:10 works well. The choice in favor of such a fertilizer for hydrangeas is advisable when growing a flower on neutral and alkaline soils. If the soil is podzolic, ammonium nitrate will help acidify it to the right level.

The second time the plant is fed when the leaves have blossomed, but there are no flowers yet. The need for top dressing with one or another type of fertilizer is determined by the appearance of the shrub. If the hydrangea looks healthy, potassium-containing preparations are chosen. Noticing signs of chlorosis, it is worth repeating nitrogen top dressing.

The choice of preparation and method of application also depends on weather conditions. When the earth is abundantly moistened with rain, it is enough to scatter the dry preparation under the bushes and dig in with earth. In drier conditions, you will need a liquid preparation. Subject to the terms and rules of feeding, the hydrangea will delight with lush color for a long time.

How to feed hydrangeas to change color

To acidify the soil and change the color of plants, once a month or more often use solutions of weakly acidic electrolyte (per bucket of water 10 ml), apple cider vinegar (per bucket of water 100 ml of vinegar) or dissolved in 10 l water 20–40 g dry citric acid. There will be more benefits if you add iron sulfate or iron chelate (20 g per 10 liters of water).

The color of plants is regulated by correcting the acidity of the soil – the more acidic it is, the more blue and purple tint will be obtained. If the pH is around 6-6.2, then the flowers will be raspberry or pink.

Helpful Tips

Only if top dressing is carried out correctly and precisely, the hydrangea will be lush and brightly blooming. Basic recommendations:

  • before adding additives to the soil, it is worth retreating from the trunk of the bush 20 cm, make a shallow groove, water or pour the composition, and then cover with compost, acid peat or humus;
  • the ground is well moistened beforehand, except for the period immediately after the rain;
  • top dressing is carried out in the evenings or early in the morning, when the activity of the sun is low;
  • Root top dressing is more often used in spring, leaf top dressing in summer.

Foliar treatment cannot replace root fertilizer. The timing and dosage are selected taking into account the manufacturer’s recommendations, weather conditions and soil composition.

in spring, autumn for lush blooms in the garden


  • The need for timely support for hydrangea
  • and fertilizers rules
    • Spring fertilizing
    • Features of summer fertilizing
    • Autumn fertilizing
  • Foreigned Foreigned Clorosis
  • The influence of various ingredients 9000 9000 9000 hydrangeas
  • Recommendations and tips from flower growers

Hydrangea is a luxurious garden and indoor plant with lush caps-inflorescences of various shades. However, hydrangea becomes a real decoration of the garden only with proper and careful care. One of the main conditions for abundant flowering is to provide the plant with all the necessary nutrients. Therefore, it is important for the gardener to know how to feed the hydrangea so that it pleases with its flowering.

The need for timely top dressing of hydrangeas

Top dressing is one of the main measures for caring for hydrangeas. It is impossible to achieve a generous, abundant, bright flowering without introducing all the nutrients necessary for this plant at different periods of development.

In order for the hydrangea to have beautiful and lush colors, it needs top dressing.

Top dressing is used to achieve:

  • active growth of strong and strong shoots;
  • abundant and long flowering;
  • obtaining the desired shade of colors;
  • classic bush habit without leaf chlorosis.

Hydrangea is a type of plant, the appearance of which directly depends on the availability of nutrients in the soil. An improperly selected fertilizer complex will lead to plant diseases. Hydrangea is not able to show its full potential without making appropriate top dressings at various periods of development. For lush flowering in the garden, the plant must be provided with proper care and competent top dressing.


Fertilization timing and rules

The main nutrients of hydrangeas in the first and second years after planting are obtained from the soil. The wells before planting are filled with a mixture of humus and soil in a ratio of 1: 1. The supply of nutrients in this case is quite enough for a plant under the age of 2 years. But from the third year, the bushes should receive additional top dressing throughout the entire vegetative period.

Spring feeding

In the spring, after hibernation, hydrangea needs mainly fertilizers with a high nitrogen content. Such top dressing stimulates the growth of shoots, contributes to the growth of leaves.

Feed hydrangeas with ammonium sulfate in spring.

It is best to use ammonium sulfate, which is physiologically acidic. Ammonium sulfate is recommended for use on alkaline and neutral soils, as well as on areas with a strong slope and light soils. Under such conditions, the substance slowly migrates in the soil, practically not being washed out by rains.

On podzolic soils, ammonium nitrate is recommended in spring. It carries nitrogen in ammonia and nitrate forms, therefore it actively acidifies the soil. In waterlogged areas, urea is used. Urea granules are scattered around the bush and buried in the soil, because in the air ammonium carbonate decomposes and volatilizes.

The first feeding is carried out in early spring, 2 weeks after the snow melts. If the soil at this time has not warmed up well, and frosts are observed at night, it is advisable to postpone top dressing.

Feeding methods in spring depend on weather conditions. In rainy weather, fertilizer is scattered around the bush and buried in the soil by loosening. If there is no rain in the spring, fertilizer is applied under the bushes in the form of a solution, since the dry granules will not dissolve.

The second spring top dressing is carried out after the foliage blooms, before flowering. Its composition depends on the appearance of the bush. If the hydrangea has released strong shoots with a large number of rich green leaves, they are fertilized with potash fertilizers. When signs of chlorosis are observed, and the shoots are flexible, re-nitrogen top dressing is used.

Features of summer top dressing

In the summer, hydrangea begins to form buds, so it needs potassium. The need for potassium in a plant arises when grown on peat-bog, chernozem, gray forest and podzolic-forest soils. The introduction of potash compounds in this case will cause a lush and prolonged flowering of the bush.

Hydrangeas need potassium supplements in summer.

Potassium supplements must be used after nitrogen ones, to maintain the balance of minerals in the soil. 30 grams of potassium sulfate are scattered over 2 squares of the area and embedded in the soil. This top dressing is used twice at the beginning of summer with an interval of 3-4 weeks.

If the soil has been filled with organic matter since autumn, then it is better to refuse potash fertilizing. For the ripening of shoots and their preparation for winter, from mid-July, all top dressing is stopped. This makes it possible for the shoots to mature, and the bush to prepare for wintering.


During flowering, the hydrangea responds well to feeding in non-standard ways. The bush is watered with kefir, whey or yogurt. Fermented milk products are diluted with water (1: 3) and a solution is used for irrigation every 2 weeks. Alternatively, you can use gruel from sour bread, diluted with water (1: 1).

Autumn top dressing

The purpose of autumn top dressing of hydrangeas is to prepare the plant for wintering. The dormant period in winter is extremely important for the development of the bush. In order to safely survive the frosts, the hydrangea must come to this time in full force, with mature, strong shoots and a viable root system.

In autumn, top dressing is applied to the soil, necessary for hydrangeas for wintering.

Feeding is one of the most important activities for caring for hydrangeas in autumn. The soil depleted after the growing season and shoots weakened by flowering need to be restored.

There are several recipes for autumn dressings, each of which has some features:

  • Potassium-phosphorus mixture. Potassium strengthens the root system of the plant, protects it from freezing. This substance is able to lower the temperature at which the liquid inside the root begins to freeze. Phosphorus increases the plant’s immunity, improves its ability to resist diseases. To prepare top dressing, take superphosphate and potassium sulfate in a tablespoon and dissolve in 10 liters of water. 10 liters are spent on feeding a bush at the age of 5 years, and 7 liters on bushes up to 5 years old.
  • Organic nutrition. It is a mulching of the surface around the bush with a layer of humus and peat. Mulching simultaneously performs the function of warming and top dressing. Decaying gradually under the influence of moisture, organic matter feeds the plant throughout the winter.
  • Mineral mixtures of potassium, phosphorus, magnesium, boron and iron. All these elements are contained in universal mixtures for industrial production of autumn dressings.

Important. In autumn, nitrogen is completely removed from top dressing, as it causes the growth of new shoots. The young shoots formed in autumn do not have time to mature before the onset of frost and freeze in winter, damaging the entire plant. The growth of new shoots in autumn weakens the bush, which leads to a decrease in the number of flower buds formed.

Organic fertilizers are placed around the hydrangea bush in autumn.

Peculiarities of feeding with chlorosis

Chlorosis affects hydrangea with iron deficiency. Garden soils are usually rich in iron, but it is in a state that is difficult for the plant to access. The introduction of this element in the form of dressings into the soil does not give a result, since it again turns into inactive compounds and is not absorbed by the hydrangea roots.


The modern chemical industry offers the best solution to this situation. You can compensate for iron deficiency and avoid leaf chlorosis by using Ferovit. 1.5 ml of the drug is dissolved in one liter of water and used for spraying bushes twice at an interval of 2 weeks. If signs of the disease are already observed, the drug is used weekly until the hydrangea is completely cured .

Effect of various substances on the color of flowers

Hydrangea is an amazing plant. The color of its flowers depends on the composition of the soil and the fertilizers obtained during the flowering process.

The color of hydrangea inflorescences can be influenced by the application of fertilizing with various compositions:

  • Ammonium sulfate can enhance the blue color of hydrangeas.

    Blue inflorescences forms a hydrangea growing in acidic soil. On acidic soils, blue inflorescences appear under the influence of aluminum. You can artificially increase the acidity by adding special fertilizers to the soil. To obtain flowers of rich blue shades, soil of a specially selected composition is introduced under the shrub. Coniferous needles are combined with peat, 2 tablespoons of potassium chloride and potassium sulfate are added to the mixture per bucket. Alternatively, you can shed the hydrangea twice before flowering and during it with a solution of potassium sulfate and ammonium sulfate (1 tablespoon per 10 liters).

  • Pink shades are obtained by adding manure humus and wood ash or lime to the soil. The pink color of the flowers is also given by the top dressing Agricola -7 and Flower. The same effect can be achieved by fertilizing slurry (1 liter per bush).
  • Hydrangea white and red varieties are fed with potassium sulfate, Agricola-7 fertilizer and superphosphate. Before planting, a soil is prepared for these varieties, consisting of peat, river sand, needles and humus, mixed with garden soil.

Fertilizing Rules for Indoor Hydrangeas

Indoor hydrangeas spend their dormant period in a cool room with little to no watering. The awakening of the plant begins in February. At this time, the flower pot is exposed to heat and begin to feed.

For top dressing of room hydrangea, complex fertilizer for flowering plants is used. An important point in the selection of fertilizer mixtures is the absence of an excess of alkali in them, which is contraindicated for hydrangeas. The most suitable for hydrangeas are special fertilizers, or mixtures designed for rhododendrons and azaleas. Feed indoor hydrangea from spring to autumn once every 2 weeks. In winter, when the hydrangea is at rest, feeding and watering is stopped.

Indoor hydrangeas are fed every couple of weeks.

The color of room hydrangea depends on the minerals introduced into the soil and on the acidity of the soil:

  • Blue flowers are obtained by adding alum to the water for irrigation (5 pieces per liter).
  • Lilac – by introducing a small amount of fluffy lime into the soil.
  • White or cream – by growing the flower in neutral soil. To reduce acidity, wood ash is added to the soil.

Tips and advice from florists

Proper feeding combined with regular watering has a positive effect on the condition of hydrangeas. The shrub actively increases its green mass, blooms profusely and for a long time, and easily tolerates winter frosts.

Without top dressing, the bush will be slightly leafy, it will start to hurt. The flowers of the hydrangea, which lacks minerals, are small, few, dull, pale, and do not last long on the bushes.

It should be noted that top dressings have a positive effect on the bush only when they are applied to moist soil. Optimal watering of the hydrangea, combined with the right top dressing, allows you to grow a strong, densely leafy, lush flowering bush that can decorate any corner of the garden or home interior.

what to feed in June, July and August, folk remedies and mineral fertilizers


  • 3 than fertilize hydrangea in the summer of
    • 3.1 Feeding of hydrangea in the summer of folk remedies
    • 3.2 Feeding of hydrangea in the summer with mineral fertilizers
  • 4 How to carry out summer feeding of hydrangea
  • 5 Councils of experienced experimental vehicles

    FELABILITURE OF SAM important part of their care. To gain green mass and lay a large number of buds, it is necessary to feed the hydrangea in June, July and August. In summer, the culture especially needs complex fertilizers for good growth and abundant flowering.

    Is it necessary to feed hydrangea in summer

    With the onset of warm summer days, all types of this culture, paniculate, tree-like, large-leaved, begin to lay buds, and in the southern regions they already bloom at all. This process exhausts the plant, takes a large amount of strength from it, it needs nutritious top dressing.

    It is better to use purchased complex fertilizers, which contain all the necessary trace elements

    If the soil lacks the necessary substances, the flowers become faded, budding stops, and the bush can be attacked by pests and various diseases.

    If there is not enough iron in the soil, the flowers of this crop change color, and the leaves in August suffer from chlorosis

    When to feed hydrangeas in summer

    Important stages for fertilizing: the beginning of growth, the process of bud formation and the flowering period itself. After transferring the seedling to the ground, the first dressing is applied after 2 years. As a rule, the nutrients that enrich the soil during planting are enough for the plant for this particular time.

    Summer dressings are applied at least 1-2 times a month. Alternate organic and mineral fertilizers. They can feed the hydrangea in August, but you should choose drugs without nitrogen. During this period, the culture is preparing for winter, and it does not need excessive stimulation.

    How to fertilize hydrangeas in summer

    Nutrient supplements should contain the maximum amount of phosphorus and potassium. In the period from the beginning of summer to August, flowers are fed with solutions of superphosphate and potassium sulfate, nitroammophoska.

    Fertilizing hydrangeas in summer with folk remedies

    Garden flower in June and August is fed with both ready-made purchased mineral fertilizers and folk remedies. The plant responds well to acidic soil. A solution of fermented milk products will help to make it such: whey, yogurt or kefir. They are diluted with water in a ratio of 1:1.

    Stale black bread can feed any flowering crop, including hydrangea, until August.

    The product is crushed and poured with water in a ratio of 1:1, insisted for a day

    The resulting solution can be used to feed a flower, both in June and August. Watering with bread is carried out every 2 weeks.

    Yeast can be fed to a flowering crop during the period of active budding – in June. Half a tablespoon of baker’s yeast is stirred with 3 tbsp. l. sugar, pour a glass of warm water. As soon as the solution begins to foam and bubble, it is diluted with water, bringing the total volume to 10 liters. The shrub is fed with yeast 2 times, in June and August.

    A weak solution of potassium permanganate is fed to the bush once in June, July and August

    The substance disinfects the soil, makes shoots and root shoots strong, but flexible.

    Serum, kefir, slightly acid solution of vinegar or citric acid are used as soil oxidizers, which can be used to feed the plant from June to August.

    Top dressing of hydrangeas in summer with mineral fertilizers

    In June, in the first decade, complex top dressing for flowering crops is applied. This month it is important to use preparations containing nitrogen. They stimulate metabolic and biological processes, prepare the bush for flowering. You can feed the flower with nitrogen until mid-July, but not in August.

    In mid-June, the bush can be fed with substances with potassium and phosphorus. Also use Nitrophoska and Agricola.

    As soon as the first flowers open, apply nutrient sprays.

    To improve flowering, the drug “Buton” is suitable, it is diluted in accordance with the instructions and sprayed with it on the green part of the plant.

    Hydrangea can be fed in July with complex potassium-phosphorus additives. Well, if other nutrients are included in the composition of such fertilizers, there should be a minimum amount of nitrogen in them.

    You can feed the shrub in August with Kemira flower fertilizer, following the instructions. A weak solution of potassium permanganate is also used, a bucket under each bush.

    In the middle of summer, shrubs are fed with slurry and nitroammophos

    Hydrangea is fertilized in August after flowering has ended. It is important to apply fertilizing that does not contain nitrogen. The shrub needs potassium, magnesium, phosphorus during this period, since it is in August that the flower buds of the next year are laid.

    In August, the flowers are watered with a solution of superphosphate and potassium sulfate (1 tablespoon per bucket of water). Each bush needs to be fed with 10 liters of solution.

    Fertilization times may vary due to climatic conditions and the general condition of the plant. In each case, it is important to take into account the periods of growth, budding, flowering. Feeding hydrangeas at the end of August can be completely excluded.

    An excess of minerals leads to a set of green mass, and next year’s flower buds will not conceive

    How to fertilize hydrangeas in summer

    During the flowering period, it is recommended to fertilize the shrub every 2 weeks. It is important to adhere to the fertilizer application schedule from July to August. The splendor of the buds and the duration of flowering depend on this.

    How to properly feed the plant:

    1. The beginning of summer is the period of formation of ovaries. To increase their number and duration of flowering, make a solution of 10 liters of water, 1 tbsp. l. means of “Agricola” and the same volume of nitroammophoska. With this amount of nutrients, you can feed 1 flowering bush 2 times a month.
    2. July is the period of active flowering. To prolong the process longer, the shrub can be fed with a solution of “Kemira flower” diluted in 10 liters of water. Top dressing is applied 2 times a month.
    3. In August, a flowering culture is recommended to be fed with a solution of superphosphate (1 tablespoon) and potassium sulfate (1 tablespoon), the substances are dissolved in a bucket of water. Nitrogen compositions are excluded in August. They stimulate the growth of the green part of the plant, which leads to deformation of the bush.
    4. Twice during the season from June to August the flower is sprayed and fed with Ferovit. It will compensate for iron deficiency, prevent the development of chlorosis.

    A week after the application of mineral fertilizers, the plant is fed with organic matter. To do this, use bird droppings, cow dung or plant residues.

    Half a liter of waste is dissolved in a bucket of water, with the resulting liquid it is recommended to feed the flower until the beginning of August

    Tips from experienced gardeners

    It is important to feed the flowering shrub from June to August correctly, without harming the plant. It must be remembered that an excess of fertilizers adversely affects the growth of a crop, can lead to deformation and decay of its rhizome.

    Helpful Hints:

    1. It is not necessary to feed the shrub more than twice a month in summer, especially in August.
    2. It is better to alternate mineral supplements with organic ones. But you can not constantly use folk methods. Hydrangea does not tolerate the constant introduction of organic substances; they should be completely abandoned in August.
    3. Between waterings, it is good to use acidic solutions that make the flower buds lush and bright.
    4. Fertilizers are applied only to loose, well-moistened soil. To do this, the day before feeding the hydrangea, it is watered abundantly. If it rained the day before, water procedures in June and August can be excluded. Moisture in the soil will not allow the active substances of complex and organic fertilizers to burn the roots of the plant.
    5. Fertilize the flower from July to August with Pokon fertilizer. A small amount of powder is poured around the bush in early June, its effect will last until the end of August.

      The product is intended for rhododendrons and azaleas, but is perfect for hydrangeas

    6. Hydrangeas are watered with a solution of citric acid (10 g per 10 liters of water) 2 times a summer, in June and August. This method will strengthen the plant, make its branches elastic, they will not break off under the weight of the buds.
    7. To give the buds a blue color, the bush is watered in early June with a special solution. Take 2 tbsp. l. potassium and ammonium sulfate, the substances are dissolved in a bucket of water.
    8. At the beginning of June, it is recommended to mix lime and ash in equal parts, sprinkle the tree trunks with powder.

      Ash will make the buds bright pink

    Hydrangea responds gratefully to fertilizing from June to August. With the right approach, the flowering of the shrub will be lush and long.


    It is important for flower growers not to forget to feed the hydrangeas in June. This is an important procedure that affects the further growth of the crop, the laying of buds, and the duration of flowering. Top dressing is applied monthly until the end of August. And in early September, preparations for wintering begin.

    what to fertilize in spring, when to feed


    • 1 Is it necessary to feed hydrangeas in spring
    • 2 When to fertilize hydrangeas in spring
    • 3 Feeding hydrangeas in spring with folk remedies
      • 3. 1 fermented milk products
      • 3.2 Bread infusions
      • 3.3 yeast
      • 3.4 Banana peel
      • 3.5 Contecks ​​
    • 9000 4 Hydrangea feeding in spring fertilizers
      • 4.1 “Agrica” for indoor and cordenzines
      • 9000 4.2 “POKON”

      • 4.3 Ferrovit
      • 4.4 Green World
      • 4.5 Fertika
    • 0008
    • 7 Conclusion

    It is necessary to fertilize hydrangea in spring, first of all, so that the plant recovers after winter. In addition, during this period, the shrub spends a lot of vitality on the formation of green mass and the creation of buds, so for lush flowering it is better to make at least one top dressing.

    If, even after a couple of spring top dressings, the hydrangea looks oppressed, additional fertilizers are added to the soil in summer and autumn. If you initially plant this crop in soil with a high level of acidity, the need for top dressing is minimized.

    Is it necessary to feed the hydrangea in spring

    Despite the fact that this is a rather unpretentious and hardy crop, at the beginning of the growing season the shrub is in dire need of feeding. Timely feeding with organic and mineral mixtures restores its strength after a slight freezing and stimulates a rapid set of green mass. Ultimately, the hydrangea not only blooms profusely, but also forms a lush spectacular crown.

    Micronutrient deficiency inhibits bush growth. Their shoots become thinner, the foliage is extremely scarce, and there are almost no flowers on the branches. A serious lack of nutrition is indicated by the yellowing of the leaves and their subsequent fall.

    For this reason, in spring, hydrangeas are fed with large doses of nitrogen, it is he who is responsible for the foliage of plants. It is followed by potash fertilizers and phosphate compounds.

    Tip! In the spring, before fertilizing the plantings, it is recommended to properly feed the area around the trunk circle. The water consumption for each plant is an average of 2 buckets of water.

    Hydrangea responds well to spring dressings and, with proper care, forms a large number of inflorescences

    When to fertilize hydrangeas in spring

    Fertilize hydrangeas at least 2 times in spring. For the first time, plantings are fertilized after the snow has melted and the soil has thawed. In the conditions of the middle lane, this falls on the beginning-mid-April. During this period, emphasis is placed on nitrogen-containing fertilizers.

    The second top dressing is at the stage of bud formation. At this time, the hydrangea is fed with potash and phosphorus compounds. Complex fertilizers have proven themselves well.

    In addition, you can feed the hydrangea 2-3 times with a solution of manganese in the spring. This substance will help strengthen the wood tissue.

    Important! In the case of using industrial mixtures in the spring, the recommended dosages should be strictly observed. Oversaturation of the soil with one or another element will not benefit the plant.

    Fertilizing hydrangeas in spring with folk remedies

    Folk remedies allow you to fertilize hydrangea bushes quickly and cheaply. They are quite effective, but you should not rely entirely on them. All of these methods should be used only in combination with industrial formulations, alternating between these two types of fertilizers.

    Fermented milk products

    A fairly simple and cheap way to feed hydrangeas in spring is to use leftover fermented milk products. This includes kefir of any fat content, yogurt, a variety of whey, fermented baked milk, etc. All these products effectively acidify the soil, which has a beneficial effect on the color of the buds.

    Tip! It is not necessary to use the remains of fermented milk products in their pure form, they can be diluted with water.

    Fermented milk products allow you to change the color of hydrangea from pink to blue

    Bread infusions

    A good top dressing for the lush flowering of hydrangeas is watering the plants with bread infusion in spring. It can be made by soaking bread crusts, after which the resulting composition is diluted in a ratio of 1: 1. The liquids are allowed to brew a little more, decanted and poured under the hydrangea bushes in the spring.

    If you feed the plantings with a solution of sour bread, you can significantly increase the content of beneficial soil bacteria. There are different fertilizer formulations based on this product, but one of the most popular is the following: a bag of the substance is mixed with 2-3 tbsp. l. sugar and pour it all into 1 liter of water at room temperature. When the yeast foams, the solution is poured into a 10-liter bucket and more water is added to it so that the container is filled to the top.

    Tip! Baker’s yeast solution can be replaced with fresh beer if necessary.

    The resulting solution is used for watering hydrangeas around the trunk circle

    Banana peel

    Banana peel is one of the most affordable ways to feed hydrangeas in the spring without any serious expenses. Bananas contain a large amount of potassium, magnesium, nitrogen and phosphorus, and in fact these elements are vital for garden plants to bloom fully.

    Plantings are fertilized with an infusion in which banana peels are kept

    Potassium permanganate

    Hydrangea is often fertilized with potassium permanganate, but here it is important not to exceed the permissible norms. The solution should not be concentrated – a few crystals of potassium permanganate per bucket of water are enough. If you stir it, it should become slightly pink.

    Saturated color indicates that the content of potassium permanganate is too high

    Feeding hydrangeas in spring with mineral fertilizers

    The simplest mineral fertilizers for hydrangeas in spring are superphosphate, potassium sulfate and ammonium sulfate. Before use, these substances are dissolved in settled water and introduced into the soil according to the instructions, watering the plantings from April-May to July.

    The urea solution also works well as a fertilizer. It is bred in a proportion of 1 tbsp. l. substances on a bucket of water. In spring, the consumption of such a solution is 5-8 liters for each plant.

    Agricola for indoor and garden hydrangeas

    “Agricola” is very popular, which can be used to feed both garden and indoor hydrangeas. The basis of the complex is nitrogen, phosphorus and potassium.

    The preparation is produced in the form of special sticks for plants


    “Pokon” top dressing is produced in the form of granules. They are scattered in the area of ​​\u200b\u200bthe near-stem circle, lightly sprinkled with soil. After incorporating the nutrient composition, the bushes are watered abundantly so that the active components contained in it penetrate into the ground.

    This is a long-acting preparation that is used only once during the entire season


    Plantings are sprayed with Ferrovit if the plant is iron deficient. This is evidenced by the weakening of the immune system – the bushes begin to hurt and look oppressed. The recommended dosage of the solution for this horticultural crop is 1 g of the substance per 1 liter of water.

    “Ferrovit” is used for preventive top dressing of panicled hydrangeas in spring.

    The use of the drug reduces the risk of chlorosis in hydrangea bushes

    “Green World”

    “Green World” fertilize the flower bed in spring and summer according to the instructions to increase the splendor of flowering. The effect of the drug lasts an average of 2-3 months.

    The product is especially effective in summer


    Fertika is a specialized nutrient composition for garden hydrangeas. This drug is recommended to feed the bushes 1-2 times a month according to the instructions, from spring to the end of summer.

    The form of release involves liquid fertilizer and granular mixture

    How to fertilize hydrangea in spring

    Hydrangea does not tolerate high content of organic matter in the soil, so this type of fertilizer is necessarily alternated with mineral compounds. In addition, it is important to maintain the recommended acidity level for this crop, which should be at 4-5 pH. If you grow hydrangea in an alkaline environment, the plant will often get sick, and the flowers will become faded and inexpressive.

    Young seedlings are fertilized during planting, filling the bottom of the planting pit with nutrient mixtures. This is especially important if the soil on the site is poor. You can feed the bushes with potassium sulphide or humus, superphosphate is also suitable.

    Important! Among the main elements that a shrub needs in spring are nitrogen, potassium and phosphorus.

    Tips from seasoned gardeners

    Although the hydrangea is one of the most undemanding plants, it is recommended to fertilize the plants from time to time. Little tricks associated with this process will help you to maximize the full potential of the bush:

    1. If you feed a seedling during planting with a nutrient mixture, pouring it into the bottom of the planting hole, then you can no longer fertilize it until winter. Moreover, this composition of the plant may be enough for the next year.
    2. If the acidity of the soil in the area is too low, the earth can be artificially acidified. To do this, the trunk circle is fertilized with rotted coniferous sawdust, high-moor peat, as well as pine or spruce litter.
    3. The color of the large-leaved, pink-flowered hydrangea can be corrected if the plant is properly fed. To do this, it is necessary to fertilize plantings with aluminum alum, a solution of citric acid or high-moor peat, after which the flowers will turn blue. If these substances are introduced into the soil on only one side of the bush, you can get a two-tone color of the buds – pink and blue. An exception to this rule is the white hydrangea, which does not change the color of the petals.

    Important! In no case should you fertilize the hydrangea in the spring with wood ash and calcium hydroxide. These substances greatly increase the alkalinity of the soil, which negatively affects the flowering of the shrub.


    If the hydrangea is fertilized in time in the spring, it will not only ensure the lush flowering of the shrub, but also significantly strengthen its immunity against various fungal diseases. At the same time, it is important not to skew towards organic or, conversely, mineral fertilizers. These two types of dressings must be alternated.