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Gardening

(123,333 posts)

1. Probably powdery mildew.

Wed Jul 13, 2016, 02:21 PM

Jul 2016

It's unsightly but it won't kill the plant. It's most likely to turn up when it's hot and damp and the plants are close together. https://en.wikipedia.org/wiki/Powdery_mildew

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Probably powdery mildew. The Velveteen Ocelot Jul 2016 #1

I have a lot of purple cone flowers... alfie Jul 2016 #2

I think mine are too close together... midnight Jul 2016 #4

Cone flowers arachadillo Jul 2016 #7