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The Daily Insight

Do you cut back hydrangeas in the spring

Author

John Thompson

Updated on April 27, 2026

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.

What happens if you don't prune hydrangeas?

Hydrangeas that bloom on old wood do not need pruning and are better off for it. If you leave them alone, they’ll bloom more profusely the next season. … Just remember new growth may come, but that new growth will be without blooms next season.

Which hydrangeas should not be cut back?

The four species that flower on old wood—bigleaf, oakleaf, mountain, and climbing hydrangeas—may not need pruning at all, except when you are pruning to keep their size or shape in check.

When should you cut back a hydrangea plant?

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.

Can I deadhead hydrangeas in spring?

Bigleaf hydrangeas, such as Endless Summer, should be deadheaded when the first set of flowers sprouts from last year’s growth in the spring, as it eliminates the faded flowers before the next flush appears,” she explains.

Should I cut off Brown hydrangea blooms?

Are the blooms on your hydrangea shrubs fading or turning brown? No need to worry – this is simply a sign that it’s time to remove the flowers, a process called deadheading. … Removing the spent blooms triggers flowering shrubs to stop producing seeds and instead put their energy toward root and foliage development.

Do I cut down hydrangeas before winter?

You can trim off the dead hydrangea flowers before winter, but cut these just behind the flower head so you don’t disturb the developing buds along the length of the branch.

How do you take care of a hydrangea bush?

  1. Water at a rate of 1 inch per week throughout the growing season. …
  2. Add mulch underneath your hydrangeas to help keep the soil moist and cool. …
  3. Apply fertilizer based on your specific hydrangeas. …
  4. Protect against pests and disease by choosing cultivars with resistant traits.

Should you deadhead hydrangeas?

You should deadhead your hydrangeas throughout the entire blooming season so that once a flower has bloomed, it can be removed to encourage new blossoms and to keep your hydrangea looking fresh.

Can I cut flowers off my hydrangea?

To encourage reblooming, remove the flowers as they fade by snipping them off with sterilized pruners. If the shrub needs shaping or dead stems removed, prune after it blooms or in early spring. … Panicle hydrangeas bloom on new wood, so cleaning up faded blossoms won’t affect next year’s flowers.

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Does cutting hydrangea flowers hurt the plant?

Hydrangeas will often grow back to their regular size, and over-trimming can result in uncontrolled growth. Prune faded or wilting flowers using pruning shears. Dull flowers can make your plant look blah, but pruning them away will allow for new growth.

Can I cut hydrangeas to the ground?

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. However over a period of time this drastic pruning may cause the plant to slowly weaken.

How do hydrangeas look in winter?

Hydrangea flower heads turn dry and brown in the fall and will remain that way throughout winter if not removed. Hydrangeas also lose their leaves during fall, but the brown stalks remain upright unless pruned back.

How do I know what kind of hydrangea I have?

If the flower buds open a green color, then turn white, and as they age turn green or greenish brown, you have an arborescens type. If the flowers open white and stay white until they get old, then you probably have a macrophylla type. White flowering macrophylla types are less common, but they do exist.

Why do hydrangea flowers turn brown?

All hydrangeas will turn brown if they wilt too many times in hot weather. Water these shrubs deeply every few days in the heat of the summer (note that hand watering isn’t deep enough) and mulch around plants to hold moisture in the soil longer.

What is the difference between deadheading and pruning?

General Pruning-Deadheading Tips. (Note: “deadheading” means to remove the spent blossoms from plants, while pruning refers to removing any part of the plant, from large to small – what we’re doing in summer is small, just cutting back some and trimming.)

How many days do hydrangeas last?

For lasting arrangements (about two to three days for fresh cut flowers), take our advice and gather blooms in the morning. Pick ones that are open and colorful. Mature flowers with a slightly papery feel will hold up best. Immediately place the stems, cut at an angle, in a bucket of water.

How do you keep hydrangeas blooming?

  1. Plant smooth hydrangeas in full sun if the soil stays moist. …
  2. Water them during times of drought, especially during the heat of summer.
  3. Amend the soil with organic matter (such as compost).
  4. Prune stems back in early spring, just before new growth emerges.

How far can I cut back my hydrangeas?

In late winter or early spring, these shrubs can be cut all the way back to the ground. Smooth hydrangeas will produce much larger blooms if pruned hard like this each year, but many gardeners opt for smaller blooms on sturdier stems.

Why didn't hydrangeas bloom this year?

The primary reasons hydrangeas don’t bloom are incorrect pruning, bud damage due to winter and/or early spring weather, location and too much fertilizer. Hydrangea varieties can be of the type that blooms on old wood, new wood or both. Old wood is the current year’s growth and new wood is next year’s (spring) growth.

How long does the hydrangea bloom last?

With large blooms in pink, blue and white, hydrangea bushes are a visually striking and popular garden plant. Individual hydrangea blooms can last for weeks at a time, but the plant flowers throughout the entire spring-summer season.