Botrytis is a more serious disease of peonies in which young stalks wilt and die. Peony buds turn black. Onset is in early spring when temperatures are below 70 degrees Fahrenheit.

Disease-causing fungi or bacteria that survives might spread, so it's best to find other avenues for your discarded peony trimmings. For example, with a large enough garden, you can bury the ...

One of my favorite spring flowers for perennials is the peony. Peonies are a long-lived perennial that you should be able to enjoy for decades. A few years after Sharon and I got married; my parents ...

While peonies are relatively problem-free, a few diseases, powdery mildew and leaf blotch, show up fairly regularly on plants during the summer months.

Powdery mildew is a common disease on peony leaves, which begins as small white spots but expands to cover entire leaves. Ken Johnson Ken Johnson Powdery mildew is a common disease on peony leaves ...

Weekend Gardening: Peonies plant disease, cucumbers, and tomatoes that won’t ripen by: Tim Joyce, Eli Ong. Posted: Aug 10, 2024 / 09:52 AM CDT. Updated: Aug 10, 2024 / 09:52 AM CDT.