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?

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1 Comment To "Rose of Sharon problem"

#1 Comment By DLarum On 06/21/2017 @ 12:20 am

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 ^[1]

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[1] https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-flowers-hibiscus-blossoms-falling-off-plant.htm: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-flowers-hibiscus-blossoms-falling-off-plant.htm

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