Swamp Milkweed leaves turning purple
northraleighguy
7 years ago
Any ideas why these milkweeds' leaves' edges are turning purple? (I think all of them are doing it to some extent, although the picture below is a Cinderella I think.) there is purple spotting also. The plants seem healthy otherwise, although the leaves do look a bit narrow. Budding is starting to happen on some of these.
They are in full sun in a rain garden in zone 7b. The garden floods when it rains but the water is absorbed less than a day later. I do not fertilize. And no aphids yet, although I'm sure they're coming.
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