The Q&A Archives: Peonies Bown Flower Buds

Question: I have a Peony bush with white blossoms. This year, as in some years in the past, the blossoms as they were maturing starting turning brown before full bloom. Last year the blossoms were beautiful, but did have some browniness on the late blossoms. What would recommend that I do to correct this problem?

Mitch Harden

Answer: If your peony is getting the sunshine it craves, the most likely cause of the browning buds is a fungal disease. Botrytis Blight and Phytophthora are common diseases. Both affect the flower buds but usually affect the foliage and stems, as well. The way to prevent theses diseases is to spray a fungicide just as the flower buds are beginning to form. If some turn brown anyway, cut them off the plant so fungal spores cannot spread to other healthy plant parts. Best wishes with your peony.

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