peonies

Question

My peonies get mold/mildew every year, usually after blooming. Was told mulch causes this. No mulch this year, some still got it.

Answer 1

This may be peony powdery mildew, a fungus. Here's how to recognize and control it:

https://www.gardeningknowhow.com/ornamental/flowers/peony/powdery-mildew-peonies.htm
https://www.gardeningknowhow.com/plant-problems/disease/get-the-cure-for-powdery-mildew.htm
https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm