Hydrangea Plants

I Grow Hydrangeas and Have Always Had Great Success


Blackbear added on August 22, 2012 | Answered

The hydrangea bush I planted in spring has started turning black everywhere. The flowers also turned black and fell off. This was from a nursery and a 1 and 1/2 foot bush just beautiful. I don't know what else I can do for it. I have always had good luck with these bushes.


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ANSWERS
Nikki
Certified GKH Gardening Expert
Answered on August 22, 2012

It sounds like you have sooty mold. This article should help: https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm

This is a fungus caused by pests. I would treat the plant with neem oil. It is effective against the pests responsible as well as the sooty mold. Here is more information that may help you:
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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