Peonies should be left in the fall until they no longer have any green showing on their leaves and stems. Then they should be cut back to ground level and the diseased tissue should be disposed of or composted where it will be hot composted above 130°F for a long period of time to kill disease pathogens. I can’t always respond to comments so for those of you that are experienced gardeners, please jump in and help as much as you can. I am a Garden Coach located in the northwest suburbs of Chicago
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Peonies should be left in the fall until they no longer have any green showing on their leaves and stems. Then they should be cut back to ground level and the diseased tissue should be disposed of or composted where it will be hot composted above 130°F for a long period of time to kill disease pathogens. I can’t always respond to comments so for those of you that are experienced gardeners, please jump in and help as much as you can. I am a Garden Coach located in the northwest suburbs of Chicago
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