Q.Rose of Sharon problem
Rose of Sharon flowers wilt shortly after blooming, we have a lot of buds but all flower’s wilt within a couple of day’s. We had a very WET May and now temp’s in the 90’s. Last yr flowers were plentiful and had no problem. I cut back some this winter, leave’s look ok had some Japanese Beatle start on leaves but sprayed with Permethrin and they are gone?
DLarum
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on June 21, 2017
You could try a fertilizer high in phosphorus( the P in NPK). This article may help as hibiscus is the perennial version of Rose of Sharon
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-flowers-hibiscus-blossoms-falling-off-plant.htm
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