Hydrangea Plants
Q.

Hydrangea Blooms

Anonymous added on September 21, 2011 | Answered

My hydrangea blooms, but not fully. It has plenty of heads, but they only partially flower. It is in a pot. This is the second year this has occurred.

A.
A.Answers to this queston: Add Answer
Nikki
Certified GKH Gardening Expert
Answered on September 22, 2011

It is likely lacking a good phosphorus/nitrogen balance in the soil. Too much nitrogen or too little phosphorus will cause it to fail to bloom. This article will have some other suggestions as well:
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-not-blooming.htm

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