Hydrangeas can sometimes be a tricky plant to care for, so it is important to learn when to prune different hydrangea varieties, as well as how to prune them. Consult our handy cheat sheet to figure out the best time to prune yours. 

Properly pruning hydrangeas based on your hydrangea’s type will allow you to have more blooms next year. However, before you start pruning, it’s important to figure out which type of hydrangea you have. If you prune at the wrong time, you could be cutting off next year’s blooms!
Hydrangea Pruning Cheat Sheet
Use this table to determine when to best prune the hydrangeas in your garden. Some types should be pruned in late winter, while others should be left alone until after they bloom in the summer.
Hydrangea Type
When to Prune
Where Flowers Appear
Bigleaf (H. macrophylla)
Summer, after flowering
On old growth
Oakleaf (H. quercifolia)
Summer, after flowering
On old growth
Panicle (H. paniculata)
Late winter, before spring growth
On new growth
Smooth (H. arborescens)
Late winter, before spring growth
On new growth
Mountain (H. serrata)
Summer, after flowering
On old growth
Climbing (H. anomala subsp. petiolaris)
Summer, after flowering
On old growth
More About Pruning Different Hydrangea Types
Bigleaf Hydrangeas (Hydrangea macrophylla)
Even though I’m located in Zone 5, my ‘Endless Summer’ mophead hydrangea—which usually has huge blue blossoms all summer long—was killed to the ground. Luckily, it has the wonderful ability to bloom on both old and new woodso even though they were a bit later than usual, there were still many blooms.

‘Endless Summer’ in a good year.
My other blue hydrangea is a lacecap-type, called ‘Let’s Dance Starlight’, but instead of the huge, mophead-type of flower cluster that ‘Endless Summer’ has, the lacecap hydrangea bears a flat blossom made up of many small, fertile flowers surrounded by a few showy, sterile flowers. It is also hardy to Zone 5 and blooms on both old and new wood.

Lacecap ‘Let’s Dance Starlight’
Both mophead and lacecap hydrangeas are considered bigleaf or macrophylla hydrangeas, so they can be pruned right after flowering by cutting back the flowering shoots to the next bud. If you have older plants that aren’t blooming well, you can cut up to a third of the stems off at the base in late summer to encourage new growth.
Panicle Hydrangeas (H. paniculata)
The hydrangeas grown most often in New England gardens are the panicle-types, since they are not only beautiful, but also very hardy, surviving Zone 3 winters with no problems. One of the oldest and most reliable favorites is ‘Grandiflora’, also known as Pee Gee hydrangea. Native to China and Japan, it was the first Asian hydrangea cultivar introduced to the United States, in 1862. They were a big hit during the Victorian era. The flowers start out a creamy white and turn a rosy pink as they age. They can be dried and look lovely in a winter arrangement. Find out how to dry these lovely hydrangeas here.
There are many panicle-types to choose from. I have one called ‘Pinky Winky’ that has long, cone-shaped white and pink flowers, and also ‘Vanilla Strawberry’, which has panicles that color from white at the tip to pink in the middle and red at the base. For something different, try ‘Limelight,’ which has chartreuse flowers that gradually turn pink in autumn.
Panicle-type hydrangeas should be pruned in late winter to keep them from becoming overgrown.

Panicle-type hydrangea ‘Vanilla Strawberry’
Smooth Hydrangeas (H. arborescens)
Smooth hydrangeas are North American natives, originally found growing wild in Pennsylvania. They tolerate light shade, begin to bloom in June, and continue to blossom until fall. Their white flowers are round and can reach 12 inches in diameter.

Smooth hydrangea ‘Annabelle’
The popular cultivar ‘Annabelle’ grows to be 3-5 feet tall and can be used to light up a shady path or as a mass planting at the edge of the woods. It is hardy to Zone 3.
Smooth hydrangeas can be pruned back to the ground in the fall or early spring.
Oakleaf Hydrangeas (H. quercifolia)
Oak-leaf hydrangeas are another North American native, having been discovered in Georgia in 1773.

Oak-leaf hydrangea
Also called swamp snowball, it is hardy to zone 5 and though it prefers full sun, it can take some shade and still blossom well. It blooms a little later than the other hydrangeas, beginning in August. Its flowers are large panicles that start out white and turn dark pink as they age. The leaves, which are deeply lobed like an oak leaf, turn a rich maroon red in the fall.
Oak-leaf hydrangeas don’t need a lot of pruning, but if you want to tidy yours up, prune out the dead stems at the base in early spring.
Learn More
If you are still unsure what type of hydrangea you have, see our page on All Hydrangea Varieties (with pictures!).
And enjoy our free complete Guide to Hydrangeas for all your planting, growing, and pruning questions!

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