Q.Hibiscus blooms one day; closes up that evening and then bloom drops off
New plant – 3 weeks; in good shape with several blooms formed; have kept watered well; transplanted only to slightly larger container upon getting it home.

Downtoearthdigs
Answered on July 4, 2019
The hibiscus flower only lasts a day, although many new hybrids have been bred which now last longer, even up to three days.
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/deadheading-hibiscus-flowers.htm
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