Powdery Mildew on Peonies
My peony bushes had a powdery mildew on them before I cut them down for the winter. Will this mildew return next season?
The powdery mildew might return. If you're armed with some weapons as in the following article, you should be able to keep it under control: https://www.gardeningknowhow.com/ornamental/flowers/peony/powdery-mildew-peonies.htm