I have a hydrangea tree, but because the branches are excessively long, they bend downward to the ground when it rains. Can I prune branches back, and if so, when should I do it?
Yes, you can prune it, but first it’s important to define a hydrangea tree so you can understand how and why.
A panicled or PG hydrangea (Hydrangea paniculata) is actually a hydrangea tree that has been deliberately pruned to resemble a tree. Depending on the cultivar, it develops huge, elongated clusters of white or lime-green blooms at the tips of its branches in the summer that progressively turn pink or even scarlet in the fall. Since few other kinds of hydrangea have stems robust enough to create decent trees, it’s very much the only one used in this method.
The panicled hydrangea typically develops into a sizable multi-stemmed shrub. It grows an abundance of branches from its base and develops an erect, spreading shape over time, eventually reaching a height and diameter of up to 15 feet (5 meters) after 15 to 20 years. It’s obvious that it’s a shrub because it doesn’t resemble a tree in its natural state.
The nurseryman selects a young specimen with a strong central branch and starts to shape it into a hydrangea tree “prune it until it yields. He cuts off any more branches and any secondary branches that develop on the branch that will eventually serve as the trunk. During the first few years, staking is frequently required to maintain the trunk’s strict verticality. He starts trimming the top of the plant as well after the trunk has grown to the appropriate height, which is often 4 to 5 feet/1.2 to 1.5 meters. Because of this, the hydrangea is compelled to grow numerous branches at the top of a primary stem, or new trunk.
The process of making a hydrangea tree is time-consuming and significantly raises the price of the plant.
If you like, you can prune a hydrangea by yourself to resemble a tree, but it will take some time.
If you want to keep a hydrangea tree healthy, you’ll need to be prepared to prune it on a regular basis. If you don’t, the branches will grow too long and begin to bend under their own weight, as you’ve seen, and they may even break off, especially when there is heavy snow on top of them.
In your situation, it would be advisable to prune your hydrangea tree before winter because it is overgrown and the limbs are already bending from the weight of the plant. Simply prune all branches back to a distance of 6 to 8 inches (15 to 20 cm) from the top of the trunk in October or November if you don’t want them to risk breaking off in snowy or icy conditions.
Starting pruning early in the spring as opposed to the fall will help your hydrangea tree survive the winter. This is because you’ll want to keep the panicled hydrangea’s dried flower heads until spring because they are lovely over the winter.
Make it a practice to trim back all the branches early in the spring, before the leaves emerge, by 6 to 8 inches (15 to 20 cm). This will give your tree the intended effect, which is typically a ball of greenery topped with blossoms at the summit of a short trunk. Panicle hydrangeas bloom from new growth that begins to appear in mid-spring, so they will continue to bloom profusely even after harsh early-spring trimming.
In order to keep its tree-like look, with a clearly “Remove any suckers that develop at the plant’s base and any growth that develops on the trunk itself. This type of pruning is suitable for all seasons.
The optimal growing conditions for panicled hydrangeas are full sun or very little shade in virtually any well-drained soil. They can thrive in zones 3 to 8 and are cold hardy.
How should hydrangeas be pruned in the fall?
Maintaining your hydrangea can greatly impact its blooms the next year. When given enough time and the right care, hydrangeas are resilient and can recover from virtually anything.
See our comprehensive growth guide for hydrangeas here after reading the fall maintenance advice below!
Because some hydrangea kinds do not like to be clipped in the fall, it is crucial to first identify your variety.
If you have hydrangeas in your garden, you should be aware that there are two different varieties. Both types develop blossom buds, one on new wood and the other on old wood. If a stem has remained on the plant since the previous summer, it is referred to as old wood. Stems that form this season are considered new wood. The majority of hydrangea species that are found in gardens are old wood bloomers, including as Mophead, Big Leaf, Lacecap, and Oakleaf types. Check your variety once more at the neighborhood garden center.
Hydrangeas can grow for many years without being pruned, but it’s time to cut them if they become unkempt, take over a portion of the garden, or stop producing new growth. But when should they be pruned?
After the summer blooms on old wood bloomers or fall blooming hydrangeas, prune them. Old, woody hydrangeas that are pruned in the fall will not bloom the following season.
Hydrangeas that bloom in the summer or those that do so on fresh wood are clipped in the fall, after their flowering season has ended.
Early in the season, hydrangeas are brilliant and colorful, but they are difficult to preserve after being cut. Once they begin to dry on the bush, they are simpler to maintain.
Your plant will have weak, wispy growth near the bottom. Reduce them. They will consume energy that could be used by your plant to produce blossoms.
On your stems, look for any dead stumps. They won’t have sprung any buds or new wood from the original old wood. To totally remove the dead stumps, cut them to the ground at the base. This will give the new growth below a chance to flourish.
To make way for new buds to emerge, old and dead blossoms must be eliminated. To promote flowers for the following summer, remove the flower head immediately above the first few leaves.
Observe the plant’s shape from a distance. The shrub should be pruned into the shape you desire; a spherical is the traditional shape, but you can prune it however you like!
Clean up any leftover debris from the plant’s foundation. Make sure your soil is devoid of all weeds, dead flowers, and leaves.
Feed your blue hydrangeas with Holly-tone to maintain acidic soil and vibrant flowers. Alternatively, choose Flower-tone.
Feed your hydrangeas two to three times each week from spring till fall for the greatest results.
Your hydrangeas will remain healthy and vibrant for many years if you follow these simple instructions.
When cutting back hydrangeas for the winter?
If and when you prune is the key to happy, healthy hydrangea flowers. Of course, fertilizing and offering the ideal environment have a lot to recommend them. However, if you don’t prune properly, your efforts will be in vain. Deadheading is not the same as trimming. Pruning refers to more drastic cutting to preserve shape or remove dead growth. However, feel free to discard spent blossoms or cut fresh ones to use in arrangements.
Hydrangeas can bloom on either fresh wood or old wood, depending on the species. The wood from which they blossom determines whether and when to prune.
Old wood-blooming hydrangeas do not require pruning and benefit from it. They’ll blossom more abundantly the next season if you leave them alone. But feel free to deadhead or gently thin. Just keep in mind that while new growth may appear, it won’t bloom until the following season. In our region, four different species blossom on aged wood. Additionally, they are not limited to the hues displayed here.
Climb using suckers. On your wall or trellis, resist the desire to remove the dormant growth.
The flower heads are more conical in appearance, and the leaves are large and resemble oak leaves. It’s a pleasant surprise for a hydrangea when its leaves turn reddish-orange in the fall.
They are very comparable to lacecap types, but smaller and with more compact leaves.
Pruning should be done in late winter or early spring on hydrangeas that bloom on new wood. Trim back to two feet to prune to shape. The next season’s blossoms are produced by strong, fresh growth that is encouraged by trimming. In our region, there are two types that bloom on fresh wood. They are also not restricted to the colors displayed.
Oakleaf variants are not included in cone-shaped blooms. Keep the blooms on throughout the winter to provide interest; even dried out, they are quite lovely.
regarded as a wild kind. They often have smaller blooms and leaves than Bigleaf variants and are completely white. They enjoy full sun and can grow very tall.
Knowing whether or when to prune now will help you avoid the disappointment of a hydrangea that doesn’t blossom. Don’t forget that a robust shrub will produce more gorgeous blossoms if it has well-draining soil and good organic fertilizer. Come on in, and we’ll show you where to go to develop your green thumb.
Should hydrangeas be pruned in the fall?
When do you prune? Only prune these hydrangeas in the summer after bloom, not in the fall. In August and September, old wood hydrangeas begin to form their bloom buds for the following year. It is advisable to delay pruning your hydrangeas until the following year if you don’t do it right away.
Which month do you prune back hydrangeas?
Depending on which group the plant belongs to, the timing and extent of pruning are determined:
Advice on Pruning for Group 1:
- As the days get shorter and the weather gets colder in the late summer and fall, buds for the following year’s blooms start to form.
- Typically, removing dead, diseased, or damaged branches is all that is required to preserve shape, size, and a healthy plant. Otherwise, gentle pruning ought to be practiced.
- In the summer, trimming should begin as soon as flowering ends, but no later than August 1. Pruning should not be done in the fall, winter, or spring because you risk removing fresh buds.
- Tip-pruning the branches in the spring as the leaves begin to appear can promote more numerous, smaller flower heads as opposed to fewer, larger flower heads.
Advice on Pruning for Group 2:
- On the growth of the current year, flower buds form.
- Early in the spring, as the leaves are starting to emerge, prune.
- Just above a node, prune branches back by half to a third.
- After that, prune any fragile or spindly branches.
- Minimal trimming encourages huge, strong bushes with many of tiny flower heads in H. arborescens. Hard pruning between 12 and 18 inches from the ground, or even all the way down, will result in fewer but larger flower heads that may flop if unsupported.
- For H. paniculata, remove the surrounding smaller wood while leaving the larger stems in order to establish a sturdy foundation.
Pruning may be connected to flower head size. Shoots will grow more vigorously and flower heads will be bigger and fewer with more rigorous trimming. Smaller but more numerous flower heads may result from less aggressive or tip pruning.
Consideration of hydrangeas’ mature size is the best piece of advise. Place them in a location where they won’t outgrow and won’t need a lot of pruning to keep them in check. Hydrangeas don’t need to be pruned precisely or often; as long as dead wood is removed, they will remain healthy and continue to develop and bloom.
How is a hydrangea tree cared for?
Hydrangeas in bloom are a surefire indicator of summer. Nothing compares to the stunning sight of hydrangeas in bloom in a range of colors. Every summer garden looks beautiful with the white, blue, pink, or purple blooms coupled with the vibrant green foliage.
How wonderful would it be to see hydrangeas on trees instead of the usual low-growing hydrangea bushes? The good news is that you can. How to grow a hydrangea tree is described here.
Instead of large spherical blossoms, the Grandiflora variety of Hydrangea paniculata develops white conical flowers. It has the potential to reach a height of 25 feet with moderate pruning and good maintenance! Your greatest option for cultivating a hydrangea tree is Grandiflora, also referred to as Pee Gee Hydrangea by gardeners.
Prepare yourself for success before you plant. The USDA plant hardiness zones 5 through 8a are ideal for hydrangea tree growth, so check your zone. Make careful to pick a location with consistent bright light because hydrangeas enjoy full sun for the majority of the day and a little afternoon shade.
Typically, hydrangeas prefer rich, permeable, moist soil. To promote healthy growth, aerate the soil with Espoma’s All-Purpose Garden Soil and apply Espoma’s Bio-tone Starter Plus. If you’re planting numerous trees, make sure to thoroughly water them and give each hydrangea a minimum distance of 3 to 10 feet.
Pruning is one of the most crucial aspects of hydrangea tree growth. The training, pruning, and correct maintenance are what distinguish a hydrangea shrub from a tree. Springtime is the best time to prune. Remove old twigs that failed to develop wholesome growths and suckers from the tree’s trunk. Trim branches so they have two or three nodes each to keep your tree looking tidy (small bumps on the branch that signify growth).
Although it requires a lot of sunlight, your hydrangea tree will offer some shade on particularly sweltering summer days. Keep the soil moist to prevent drooping leaves and blossoms because greater sunlight requires more water. Before the height of the growing season in the spring, prune your hydrangea tree.
Growing a hydrangea tree sounds like the next step for you if you love your hydrangeas and want to see more than a standard shrub!
Do you prune hydrangeas in the spring or the fall?
Pruning is not typically thought of as one of the many gardening activities that may be done in the fall, despite the fact that there are several. It can be difficult to cultivate hydrangeas successfully in New Hampshire, and if you want your plants to blossom, there is frequently very little room for error in pruning.
Wait until Spring to prune hydrangeas
In New Hampshire, hydrangeas come in a variety of kinds, and each one has quite distinct growth patterns and pruning needs. Some plants only produce flowers on fresh growth, while others mostly produce flower buds on older wood. In any case, it is better to postpone all hydrangea pruning until spring. Hydrangeas, as with all other trees and shrubs, go dormant in the fall. Not much new growth is produced by them until the next spring. As new growth is more vulnerable to harsh cold at the location of wounds, plants that have been trimmed now run a higher risk of winter damage. Additionally, fall pruning may lessen the quantity of June blooms.
Considerations for pruning hydrangea species commonly grown in New Hampshire gardens
The gigantic blue mopheads or lacecaps known as bigleaf hydrangeas (Hydrangea macrophylla), which are familiar to most gardeners, form their flower heads at the tips of stems on old wood from the previous year. Although lower buds along the stem have the capacity to grow blooms as well, the hydrangea’s blossoming potential is decreased if those buds are died or damaged throughout the winter. Wait until new growth sprouts in the spring before pruning your bigleaf hydrangeas. Approximately 1/4 inch above the first group of live buds, prune the plant. A hint: the interior of living stems will be green, whereas the interior of dead stems will be brown. Cut completely dead stems flush with the base.
The three other hydrangea species that are frequently planted in Fresh Hampshire—oakleaf (H. quercifolia), panicle (H. paniculata), and smooth—all bloom on new growth. Before the emergence of the leaves in the late winter and early spring, remove wasted flowers and prune the plant to improve its general structure and habit.
In conclusion, there are a ton of other activities you can engage in to stay occupied in the garden during fall. Save the spring for hydrangea pruning.