Hydrangea Disease

Both of my hydrangeas have a disease, big black spots on the leaves. They were fine until a week ago. Can you tell me what this is and what I can do to make the hydrangeas healthy once again?

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1 Comment To "Hydrangea Disease"

#1 Comment By Nikki On 09/04/2012 @ 9:10 am

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 ^[1]
https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm ^[2]

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URLs in this post:

[1] https://www.gardeningknowhow.com/ornamental/flowers/roses/black-spot-roses.htm: https://www.gardeningknowhow.com/ornamental/flowers/roses/black-spot-roses.htm

[2] https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm: https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm

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