Hydrangea Plants

Hydrangea Blooms Not Opening

jwilliam422 added on July 22, 2015 | Answered

I have numerous blooms on my hydrangeas, but they are not fully opening. The tiny buds around the edges are blossoming, but none of the center buds are opening. The bushes get plenty of shade during the daylight hours; perhaps they are getting too much to fully open?

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Certified GKH Gardening Expert
Answered on July 23, 2015

5 hours of sunlight is generally a good amount for flowering.
You could try a boost of Phosphorous to encourage a flowers to open fully.
Bone Meal is a good way to do this.
You may want to do a soil test in the future to make soil corrections.


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