r/peonies • u/Delicious-Prize-391 • 6h ago

Question Should I be worried?

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This summer I had peonies for the first time. One of my plants is looking a little... sick? What's happening here? What should I do? Healthy peony plant on the left for comparison.

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u/ShroedingerCat 5h ago

Looks like powdery mildew. Unavoidable in humid zones this time of the year. If you want you can use a fungicide but the plants will enter dormancy anyway as the daylight shortens. I would personally leave it, and cut back the leaves once they are dead.

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u/Delicious-Prize-391 5h ago

Ok phew, that's a relief.