White mildew on peony, Is it safe to cut them back now?
I recently purchased 10 peonies that were all marked down because of white mildew. I took them home and keep it separated from all my current ones, hoping that that I will cut it at the end of September then plant them. well the mildew got worse and I'm debating if I should just cut them now. I'm in Chicago suburb 5a zone (6 according to the new map). If I cut them now would it be ok?