How to Plant Hydrangeas: Tips for growing beautiful hydrangea plants

Hydrangeas (Hydrangea spp.), with their large, round flower heads and range of colors, have been popular ornamental plants for many years.

They can be planted at the end of the season or in early spring, but be aware that this plant is toxic to humans and other animals.

Hydrangeas grow quickly, with an average annual growth of 2 feet or more.

Common Names Hydrangea, hortensia
Botanical Name Hydrangea spp.
Family Hydrangeaceae
Plant Type Deciduous shrub
Mature Size Up to 15 ft. depending upon variety
Sun Exposure Full, partial
Soil Type Any
Soil pH Any pH but it can influence bloom color
Bloom Time Mid-summer through fall
Flower Color Varies depending on species: white, blue, pink, maroon, red, purple, and pale green
Hardiness Zones 5-9 (USDA)
Native Area Asia, the Americas
Toxicity Toxic to humans1 and animals2

Tips for Keeping Your Plants Healthy:

  • When planting hydrangeas, be sure to plant them in an area that gets plenty of sunlight. They also prefer well-drained soil that is high in organic matter.
  • If you are growing hydrangeas in pots, make sure to use a potting mix that is specifically designed for plants.
  • Water your plants regularly, especially during the summer months when they are actively growing.
  • Hydrangeas are relatively drought tolerant once they are established, but they will need extra water during periods of extended dry weather.

Lighting and Temperature

Hydrangeas prefer partial sun to full shade, with at least four hours of sunlight per day. They can tolerate some direct sun, but too much will cause the leaves to scorch.

The ideal temperature for growing hydrangeas is between 60 and 70 degrees Fahrenheit.


The first step to planting hydrangeas is choosing the right spot. These plants prefer well-drained, moist soil with a pH level between of.

They also need at least six hours of sunlight each day, though they will tolerate partial shade.

Avoid planting them in areas that are prone to flooding or where the water table is high.


Fertilizer is important for healthy hydrangea plants. Use a slow-release fertilizer that is high in phosphorus.

Apply the fertilizer around the base of the plant, taking care not to get it on the leaves or flowers. Water the plant well after applying the fertilizer.


Pruning is an important part of caring for your hydrangea plant. The best time to prune is in late winter or early spring, before the plant begins to produce new growth.

You can also deadhead the flowers after they bloom, which will encourage the plant to produce more flowers.


Watering is critical when first planting hydrangeas. The plants need to be kept moist at all times during the first growing season.

After that, they are somewhat drought-tolerant but still need regular watering during extended periods of dry weather.


Size and shape vary greatly among hydrangea varieties, so it’s important to choose one that will fit your space.

Bigleaf hydrangeas (Hydrangea macrophylla) are the most popular type, with showy flowers that can reach up to 12 inches in diameter.


Flowering shrubs are one of the best ways to add color and interest to your garden, and hydrangeas are some of the most popular shrubs around.

Common Pests & Plant Diseases

Aphids and black vine weevil, four-lined plant bugs, Japanese beetles, and spider mites are all common garden pests that can cause damage to hydrangeas.

Rose chafers can also skeletonize leaves, leaving the plant vulnerable to disease. While chemical insecticides are effective at eliminating these pests, they should be avoided during the flowering season. A less abrasive soap repellent can be used instead.

These insects can also be placed in buckets filled with soapy water, which will kill them.

Hydrangeas are also susceptible to Botrytis Blight, powdery mildew, and other viruses such as brown or yellow brown leaf spots.

While fungicides are an excellent treatment for most of these problems, they can also kill plants with viral spots.

For this reason, it is important to be aware of the potential risks before using any type of pesticide or herbicide on your plants.

Propagating Hydrangea

They rarely produce seeds, but there are two ways to grow the plant. Taking stem at cuttings at the appropriate time may result in stronger, more durable roots that are almost certain to succeed when transplanted into the soil.

Another option is to plant the hydrangeas directly into the ground, leaving the shrub intact until the final step. This is the best option for filling gaps in your garden or if you want to have a more dense set of trees.

Propagation by cuttings

Choose a new growth stem that is six to eight inches long and does not have a flower in early autumn. New growth is greener and lighter than old growth.

Using a sharp, sterilized pruning tool Trim the stem just below the leaf node (a node indicates the place where a set of leaves is set to develop). In addition to a node, k identifications can be made by looking for small bumps on the stem.

These are callous tissue that will form the roots of your new tree. Also make sure to remove any leaves from the bottom half of the cutting as these will only serve as an unnecessary distraction during root formation.

Types of Hydrangea

Hydrangeas are a popular choice for ornamental plants due to their large, showy flowers. There are many different species of hydrangea, but the most common ones used for decoration are Hydrangea macrophylla, Hydrangea arborescens, and Hydrangea quercifolia.

Hydrangea macrophylla, also known as bigleaf or mophead hydrangea, can grow to be six to ten feet tall and wide. Its leaves are six inches long, and the flowers can be either blue or pink, depending on the pH of the soil.

These flowers bloom on both new and old growth. Hydrangea arborescens, also known as smooth hydrangea, grows to be three to five feet tall and wide.

It has pink and white flowers that bloom in the spring on new stems. Hydrangea quercifolia, also known as oakleaf hydrangea, is native to the southeastern United States.

It grows to be six to eight feet tall and wide and has large, deep green leaves. The flowers are white and bloom in the summer on old growth.

Do hydrangeas like sun or shade?

Hydrangeas are a type of flowering plant that is native to Asia and North America. There are many different species of hydrangea, and they can range in size from small shrubs to large trees.

Hydrangeas typically have large, showy flowers that come in a variety of colors, including white, pink, blue, and purple. While many people think that hydrangeas prefer shady areas, they actually do best in regions with moderate amounts of sunlight.

Too much sun can scorch the leaves and damage the flowers, while too little sun can cause the plant to become leggy and produce fewer blooms. For best results, choose a spot for your hydrangea that gets morning sun and afternoon shade.

What month do you cut hydrangeas back?

As any gardener knows, timing is everything when it comes to trimming plants. With hydrangeas, it’s important to wait until the flowers have stopped blooming before cutting back the branches.

However, this doesn’t mean you should wait too long – the trimming should be completed by August 1 at the latest. Pruning any later than this could damage the buds of new growth.

It’s also important not to prune in the autumn, winter, or spring, as this could prevent the plant from flowering at all.

By following these simple tips, you can keep your hydrangeas healthy and ensure they put on a beautiful display year after year.

How do I get more blooms on my hydrangea?

Hydrangeas are beautiful, flowering plants that can add a touch of elegance to any garden. But sometimes, gardeners may find that their hydrangeas are not blooming as much as they would like.

If you’re looking for more blooms on your hydrangea, there are a few things you can do. First, make sure the plant is getting enough sun.

Hydrangeas need at least six hours of sunlight each day, so a spot that is sunny in the morning and shady in the afternoon is ideal.

Second, keep the soil moist by watering regularly and applying a mulch. And finally, fertilize in spring with a balanced fertilizer to give the plant a boost of nutrients.

By following these tips, you can enjoy more beautiful blooms on your hydrangea all season long.

How far back do you cut hydrangeas in the fall?

As the weather cools and the days grow shorter, you may be thinking about giving your garden a little tidy-up before winter sets in. If you have hydrangeas, then you may be wondering how far back to cut them.

The general rule of thumb is to prune the plants so that they leave between 18 and 24 inches. This will give the plants a woody base to grow from, which will help the stems to better support the pompom flowers.

In some cases, you may also want to remove any dead or diseased leaves and stems. By taking these measures, you can help your hydrangeas to stay healthy and thrive come springtime.

How do you maintain hydrangeas?

Hydrangeas are a popular choice for gardens, thanks to their beautiful blooms and relatively easy care requirements. However, to keep your hydrangeas looking their best, there are a few things you need to do.

First, make sure to plant them in an area with plenty of sun and well-drained soil. Then, water regularly, especially during dry spells. Once the flowers start to fade, cut them back to encourage new growth.

Finally, fertilize once a month during the growing season. By following these simple tips, you can keep your hydrangeas healthy and beautiful for many years to come.

What happens if you don’t prune hydrangeas?

As any gardener knows, pruning is an essential part of plant care. By trimming off dead or dying leaves and branches, plants are able to direct their energy towards new growth.

This is especially important for hydrangeas, as regular pruning helps to keep them looking neat and tidy.

Without pruning, hydrangeas can become overgrown and messy, with fewer and smaller flowers. In addition, unpruned hydrangeas are more susceptible to disease and pests.

As a result, it is important to make sure that you regularly prune your hydrangeas in order to keep them healthy and looking their best.

Should I cut back my hydrangea bush in the fall?

Most gardeners know that it’s important to prune their plants on a regular basis. Pruning helps to encourage new growth, remove dead or dying branches, and improve the overall health of the plant.

But when it comes to pruning hydrangeas, timing is everything. Hydrangeas are best pruned in the summer, just after they have finished flowering. If you wait too long, you run the risk of cutting off next year’s flower buds.

So if you’re wondering whether or not to trim your hydrangea bush this fall, the answer is probably no. wait until summer and you’ll be sure to have a beautiful display of blooms next year.

Do hydrangeas need to be cut back?

While hydrangeas don’t require pruning, there are a few situations where you may want to give them a trim. If the plant is too large for its space or is starting to look unruly, you can lightly prune it back.

You can also remove any dead branches, and deadhead the spent flowers. However, be careful not to over prune, as this can damage the plant.

If you’re not sure how to properly prune your hydrangea, it’s best to consult a professional. With a little care, your hydrangea will thrive and provide you with beautiful blooms for many years to come.

Should I cut down my hydrangea for winter?

Winter is a time of rest for many plants, but that doesn’t mean that they don’t require a little bit of care. For hydrangeas, this means pruning back the dead growth in order to encourage healthy new growth in the spring.

While it may seem counterintuitive to cut back such a beautiful plant, doing so will ensure that it remains healthy and blooms next year. To properly prune a hydrangea, start by removing any dead or damaged branches.

Then, cut back the remaining branches by about two feet, being careful not to damage the buds. With proper care, your hydrangea will be blooming in no time.

How far do you cut back hydrangeas in the fall?

As the weather begins to cool and the days grow shorter, many gardeners begin to think about preparing their plants for winter.

One important task is pruning, which helps to encourage new growth and promote plant health. For hydrangeas, fall is the ideal time to give them a trim.

Cutting back the stems by 18-24 inches will help to create a stronger structure that can support the weight of the flowers.

In addition, pruning ensures that the plant will put its energy into producing new growth, rather than trying to repair damage from the previous season.

As a result, taking the time to properly prune your hydrangeas in the fall will pay off come springtime.

Jessica Miles

Jessica Miles is a writer for Botanique Boutique, a plant and gardening blog. She has always loved plants, flowers, and anything green. When she was younger, she used to watch her grandfather garden and would be in awe of the beautiful flowers he would grow. Now Jessica writes about all things related to plants and gardening - from beginner tips on how to start growing your own plants, to in-depth guides on caring for a specific type of flower or plant. She loves helping others learn about this fascinating hobby, and hopes that her writing will inspire people to get outside and enjoy nature!

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