When to prune Endless Summer hydrangea (2024)

Endless Summer hydrangeas should typically be pruned once per year in the summer after the blooms have faded. This hydrangea grows flower buds on its stems in the fall that stay on the plant over the wintertime and then bloom in the spring. Because of this, pruning in winter or spring can lead to a lack of flowers during the upcoming season.

If you don’t mind delaying flowers, late winter or early spring pruning can stimulate vigorous growth in young plants. Dead wood can and should be removed any time of year (as soon as observed).

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When to prune Endless Summer hydrangea

Pruning is an important part of caring for Endless Summer hydrangeas. Pruning helps to maintain the size and shape of the shrub, as well as encourages new growth and blooms. The best time to prune these plants is in late summer when they are done flowering.

It’s important to avoid pruning mature Endless Summer shrubs in winter or spring since this can remove flower buds that were set on the stems during the previous autumn. If you need to do some maintenance trimming at other times of the year, make sure you don’t cut off any flower buds or branches with flowers already on them.

If your hydrangea has become overgrown, performing a more extensive pruning session in late winter may be necessary before new growth begins in springtime. This will help keep your plant looking neat and tidy while also encouraging healthy new growth throughout the season. Just be aware that winter or early spring pruning will remove flower buds, so your Endless Summer shrub will not be blooming in the spring.

When doing any type of pruning work on Endless Summer hydrangeas, always use clean and sharp tools such as shears or loppers so that you get clean cuts without damaging the stems or bark around them. Make sure all cuts are made just above a bud facing outward from the center of the bush; this will ensure that new shoots grow outwards instead of towards each other, which can cause overcrowding within your shrubbery.

Finally, remember not to remove more than one-third of the total foliage per season in general. This should be enough for regular maintenance purposes but won’t shock your plant into dormancy like taking away too much would do.

Pruning in the summer months is essential for maintaining a healthy and attractive Endless Summer Hydrangea. Now, let’s explore how to go about summer pruning your hydrangea.

When to prune Endless Summer hydrangea (1)

Summer pruning for Endless Summer hydrangea

Pruning an Endless Summer hydrangea in the summer has many benefits. It encourages more flowering, as it helps to remove any dead or weak wood and promote new growth. Pruning during the summer months can also help improve air circulation around the plant, which is important for keeping disease away. Lastly, summer pruning tends to slightly stunt the shrub, keeping it small and compact instead of lanky and leggy.

When you’re ready to begin pruning your Endless Summer hydrangea, make sure you have a pair of sharp gardening shears or hand clippers handy. To keep your pruners disinfected, carry a jar of Lysol multipurpose cleaning liquid that you can dip the blades into.

Start by removing any dead or diseased branches first; these will be easily identifiable due to their discoloration and lack of leaves. You can also remove any cracked or damaged branches. Take all these branches back to their base instead of leaving stubs.

Once those are taken care of, start snipping off any shoots that are growing too close together; this will help keep your shrub looking neat and tidy while also allowing for better air circulation throughout its foliage. Thin out any weak stems by removing them. Pay particular attention to removing stems that are growing inwards towards the center of the shrub or are crossing other branches and potentially rubbing along each other.

Next up is shaping your Endless Summer hydrangea into whatever shape you desire! To do this properly without damaging the plant’s structure, focus on cutting back only one-third of each stem at a time. Step back and look at the shrub’s overall shape as you go. These shrubs are usually shaped into a ball-like sphere if planted alone or into a rounded low hedge if planted in a line.

Finally, if you want fewer but bigger blooms, consider pinching out some remaining buds on the new growth before they get too big. Doing so will encourage larger flower heads when they eventually bloom later on down the line. Just make sure not to pinch them all out, though, because then there won’t be enough left over for pollinators like bees and butterflies who rely on these plants for food sources throughout their lifecycles, so try leaving at least half untouched if possible (or even more depending on how much space you have).

Effects of pruning in fall, winter, or spring

Pruning at the wrong time can have a major impact on the health and beauty of your plant. Endless Summer is a cultivar of Hydrangea macrophylla, which typically blooms on old wood. Endless Summer is one of a few reblooming hydrangeas that are able to grow flowers both on old wood and on new wood. It is important to understand the flowering cycle when considering pruning outside the normal summertime window.

Fall pruning should be limited to removing dead, damaged, or diseased branches. You can also deadhead by removing the flowers in the fall in areas with heavy snow loads. Deadheading will help keep your plants looking neat and tidy during winter months when they are not blooming. It can also help keep the branches from bending over and potentially breaking during wet, heavy snowfalls.

Winter pruning should generally be avoided altogether. Pruning during this time could cause you to lose out on some beautiful blooms come springtime! If you must do any pruning during winter months, only remove branches that are obviously dead or diseased – never cut off healthy growth unnecessarily! It can be hard to see which branches are dead during the winter, but the damage is often quite visible due to the lack of leaves.

Spring pruning should also be kept to a minimum since this is when new growth begins emerging, and the dormant flower buds get ready to bloom. Removing too much foliage or flower buds can reduce flowering significantly throughout the summer months, so avoid general pruning if possible! Instead, focus on removing any dead wood or crossing branches that may be blocking sunlight from reaching other parts of the plant’s canopy.

There is one situation in which Endless Summer hydrangeas are sometimes pruned in late winter/early spring. This timing is generally used only with new or recently rejuvenated plants. Pruning in late winter/early spring tends to stimulate vigorous vegetative growth and can help you grow a particularly large Endless Summer shrub. If you know the plant will not be flowering much anyway because it was recently planted or recently cut back to the ground, it is perfectly fine to prune at the beginning of the season since you are not expecting flowers anyway.

In summary, take care not to over-prune your established Endless Summer Hydrangea by avoiding general trimming in the fall, winter, and spring seasons, as these times are crucial for bud formation, which leads to beautiful blooms later in the summertime. Keep an eye out for signs of disease, such as discolored leaves or wilting stems, and make sure you remove those promptly before they spread further into your garden beds.

Pruning your Endless Summer Hydrangea in the fall, winter, or spring can affect its growth and blooms differently. To ensure that you are properly caring for your hydrangea, it is important to understand the basics of pruning.

Pruning basics for Endless Summer hydrangea

Pruning hydrangeas helps keep them healthy, encourages new growth, and can even help shape their appearance. Pruning also helps to remove dead or diseased branches, which can spread disease throughout a plant if left unchecked.

The first step in pruning is selecting the right tools for the job. Hand pruners are best used on small branches, while loppers are better suited for larger ones. For thicker branches on older shrubs, you may need a pruning saw. Always make sure that your tools are sharp before using them, as this will reduce damage to the plant and make it easier for you to do a good job of pruning. You should also keep them disinfected (I use Lysol multipurpose liquid).

When deciding what parts of the plant should be removed during pruning, always remember that less is more! You want to leave enough foliage behind so that your plants stay healthy but not too much, where it starts crowding out other growth or becomes unruly looking. If possible, try not to cut off any major limbs unless absolutely necessary, as this could cause stress on the plant and lead to further problems down the line, such as dieback or disease issues due to lack of proper air circulation around those areas afterward.

Finally, when removing any deadwood from your plants, always use caution since these pieces may still contain spores from fungal diseases, which could spread quickly if disturbed by cutting through them with your tools without taking proper precautions beforehand. Be sure to dispose of the cuttings safely so they do not contaminate other parts of the garden or nearby areas. The municipal green bin that goes to hot composting is generally the best place for them.

How to prune Endless Summer hydrangeas

Start by using sharp shears or loppers, depending on each stem is thickness. Begin by identifying dead wood first – remove any grey-colored brittle stems entirely while leaving healthy, flexible green ones alone until later steps are taken care of afterward.

Next, thin out any overcrowded areas of the shrub. Remove any branches growing inwards or crossing and rubbing on other branches. Take them off back to the base rather than leaving stubs.

Lastly, if you like, you can shape the shrub overall. Just remember that Endless Summer is unique in that it can bloom on new and old wood, so any time you snip off a fresh green tip, you are likely removing flower buds and decreasing flowering potential. If you clip off some of the buds on the new wood, the remaining flowers tend to be larger, so there is not much harm in clipping a few off.

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When to prune Endless Summer hydrangea (2024)

FAQs

When to prune Endless Summer hydrangea? ›

The best time to prune your Endless Summer hydrangeas is in early spring, just as those first signs of new growth start popping up. By pruning at this time, you're giving your hydrangeas a chance to focus their energy on producing fresh branches and loads of blooms during the growing season.

How do you know when to prune hydrangeas? ›

Prune back stems to just above a fat bud — called a heading cut — in fall, late winter or spring. These plants have conical-shaped flower heads. I recommend leaving the dry, tan flower heads on the plant to provide some winter interest in your landscape, so I wait to prune these until late winter or spring.

What do you do with Endless Summer hydrangeas in the winter? ›

If you live in Zone 6 or warmer, you can treat it like any other plant and lightly cover the crown and leave the container in place. For the colder parts of the country, cover the crown and move the container into your garage or basem*nt once it has gone dormant.

What happens if you prune hydrangeas too much? ›

One common misconception about hydrangeas is that you can prune them throughout the season to keep them shorter. Don't do it or you'll risk cutting off the flower buds.

Is it better to prune hydrangeas in fall or spring? ›

While some plants bloom on new growth, others primarily set flower buds on old wood. Regardless, it is best to wait to prune all hydrangeas until spring. In the fall, hydrangeas (and all trees and shrubs) are in the process of going dormant. They do not produce very much new growth until the following spring.

Can you prune hydrangeas anytime? ›

Trimming should be done immediately after flowering stops in summer, but no later than August 1. Do not prune in fall, winter, or spring or you could be cutting off new buds. Tip-pruning the branches as leaves emerge in spring can encourage multiple, smaller flower heads rather than fewer larger flower heads.

Should hydrangeas be cut to the ground in the fall? ›

New Wood Bloomers

It is easy to grow these hydrangeas because they bloom every year regardless of how they are cared for or treated. They can be pruned to the ground in the fall and they will emerge in the spring with bountiful blooms.

What is the best time of day to cut hydrangeas? ›

Cut the hydrangeas in the morning when it's cooler.

Your flowers will look fresher than if they've been under the hot sun all day. Since the flowers are fresher, they will last longer in your arrangement. It's best to wear gloves while you cut the flowers.

Are Endless Summer hydrangeas old wood or new wood? ›

Since Endless Summer® Hydrangeas bloom on last year's growth (“old wood”) as well as the current season's growth (“new wood”), you will get the most flowers by protecting the flower buds on the old wood. To do this, do NOT prune or cut back your shrubs after August 1st.

How long do Endless Summer hydrangeas last? ›

Endless Summer is a brand of several cold-hardy reblooming hydrangeas. These cultivars provide flowers in a range of colors from spring through to late summer, lasting for 10 to 12 weeks longer than other mophead hydrangeas.

Can I prune hydrangeas in June? ›

(3) In addition, if it becomes necessary to prune a plant to reduce its size, it may be cut back in June or July without harming the next year's bloom. But it will return almost immediately to it's former size. This is one reason why it's best to plant a hydrangea where it does not have to be pruned.

Can you prune hydrangeas in July? ›

Prune these hydrangeas only up until mid-August. As fall approaches your hydrangeas will create buds for next year's flowers, and you don't want to accidentally cut these off. Editor's Tip: Pruning hydrangeas in early spring helps the shrub produce more flowers, though the clusters will be smaller.

Should you cut back Endless Summer hydrangeas in the fall? ›

Since Endless Summer® Hydrangeas bloom on last year's growth (“old wood”) as well as the current season's growth (“new wood”), you will get the most flowers by protecting the flower buds on the old wood. To do this, do NOT prune or cut back your shrubs after August 1st.

How do you keep Endless Summer hydrangeas blooming all summer? ›

Endless Summer® hydrangeas prefer morning sun and afternoon dappled shade. If they are planted in full sun, it may be too hot and intense for the blooms to produce. Also, over-watering and over-fertilizing your plants can inhibit bloom production.

How do you reduce Endless Summer hydrangea size? ›

Experienced growers have found that 'Endless Summer' hydrangeas are best pruned as soon as the plants have finished flowering. This will usually occur sometime in late summer. Each stem should be trimmed back to the nearest set of healthy buds, making each cut so that it slants away from growth.

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