Dear Master Gardener: Some of my peony bushes have leaves that have turned powdery white. Should I take some action? Answer: It sounds like your peony bushes are infected with powdery mildew, a fungal ...
Dear Carol: For the past two years, my peonies have gotten white spots on the leaves. This happens after they have finished blooming. Some of the stems are now covered with what appears to be a white ...
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