hydrangeas

Question

I have a light gray powder on the leaves of my hydrangea which has been inside since Easter when it was given to me. It is small and I was going to plant it outside. I don’t know what it is or what to do about it.

Answer 1

Sounds like Powdery Mildew. Here is a link to help you.

https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm