Q.Why do my Hibiscus buds fall off just before blooming?
The plant and buds look just fine and at about the time the bud should open, it falls off. I have had only about 8 – 10 blooms and about 25 to 30 buds fall off.

Nikki
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on June 23, 2012
This article may offer some suggestions: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-flowers-hibiscus-blossoms-falling-off-plant.htm
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