Rust on Callirhoe Involucrata (Mallow)

Asked June 15, 2019, 12:19 PM EDT

It appears that I have rust on my Wine Cups plant. I live in northern Minnesota and we have had a cool, wet season so far. How do I treat it?

Hubbard County Minnesota rust wine cups

1 Response

Following is information about plant rust and ways to control it.

Because it is a native wildflower, wine cups probably won't be listed on fungicide labels.