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Originally Posted by bluenurse
Oh Wow, this is great!! My question---I have several peony plants and peony trees. Two years ago we had a very wet summer. My peony plant leaves and stalks started turning whitish grey, and then got black spots all over. I cut them back to the ground. Last year they came back up with the same problem. I cut them back again.Thank goodness my peony tress are still healthy.
Is this fungus, and how do I get rid of it? Or, do you think this is some other problem?They are just starting to come up again. They didn't bloom that well last year either.
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Peonies --- Tree Peonies should never be cut back. At least that's my opinion from my training. If you have some sort of fungus on them, then that should be treated and the infected leaves and stalks should be removed and destroyed.
Shrub peonies should be cut back every year. What you are describing sounds like a fungus. Make sure when you do your spring clean up, that all of the mulch and dead leaves and stalks from last season have been completely removed and replaced. The fungus is probably still growing in the mulch from the previous season.
During this season, if you see any leaves or stalks appearing with these same black spots, remove them immediately. Be sure that water is not splashing onto the plants.