Container Hydrangea Plants
Q.

Hydrangea

Anonymous added on May 15, 2011 | Answered

Why are the leaves on my hydrangeas turning black? I recently transplanted a few potted hydrangea plants. They were the type you buy in a smaller pot as a gift. Some are in sunnier parts than others. I see new growth, but the color change in the leaves is really strange.

A.
A.Answers to this queston: Add Answer
Nikki
Certified GKH Gardening Expert
Answered on May 16, 2011

It could be either black spot or sooty mold. Both are treatable and in most cases, not fatal to the plants. These articles will help:
(this is about black spot on roses, but it applies to all plants) https://www.gardeningknowhow.com/ornamental/flowers/roses/black-spot-roses.htm
https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm

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