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Q.Hydrangeas Not Blooming…why?

Zone Dunbar, WI zone 4 | Anonymous added on September 21, 2022 | Answered

Hi, I planted three hydrangea bushes about six years ago. I live in zone four and they mostly get full sun. However, they have yet to bloom! The foliage is approximately 3 feet tall and very healthy looking but just wondering why I am not getting any blooms after all these years? I would appreciate any help!

A.Answers to this queston: Add Answer
GKH_Susan
Certified GKH Gardening Expert
Answered on October 1, 2022

Are your hydrangeas rated for zone 4? The buds could be getting zapped by a late freeze if your shrubs bloom on old wood (buds develop on last season's growth). Also, improper pruning can prevent blooms. Most often, people with the bigleaf hydrangea or mophead hydrangea have the most trouble with blooms.

Here are more ideas:

https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-not-blooming.htm

https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-4/choosing-hydrangeas-for-zone-4.htm

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