Peony Plant

Powdery Mildew on Peonies

yvwilf2 added on July 18, 2017 | Answered

Is mid July to late to spray. Most of the leaves are half covered already. I tried earlier in early June with no results. Also, what should I do this fall when I cut them back. Thanks

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Certified GKH Gardening Expert
Answered on July 19, 2017

You can treat the plants every 10 to 14 days through the summer months.

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