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Hibiscus trionum
Also called Bladder Ketmia, Venice Mallow, Bladder Ketmia, Flower Of An Hour, Rosemallow, Modesty, Trilobate Ketmia
Flower of an hour is a fast-growing annual that flowers only for a few hours each day, opening in the morning and closing by afternoon. It thrives in full sun and warm, well-drained soil, and self-seeds readily.
Hibiscus trionum, commonly called flower-of-an-hour, bladder hibiscus, bladder ketmia, bladder weed, puarangi and venice mallow, is an annual plant native to the Old World tropics and subtropics. It has spread throughout southern Europe both as a weed and cultivated as a garden plant. It has been introduced to the United States as an ornamental where it has become naturalized as a weed of cropland and vacant land, particularly on disturbed ground.
Alyogyne hakeifolia · Alyogyne huegelii · African rosemallow · Kenaf · Scarlet rosemallow · Desert rosemallow · Paleface · Philip Island hibiscus · Hibiscus · Heartleaf rosemallow · Muenchhusia moscheutos · Dixie rosemallow
Text excerpted from the Wikipedia article Hibiscus trionum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
