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A picture of a Flower of an hour

Flower of an hour

Hibiscus trionum

Also known as

Bladder ketmia

Photo by CandideUK (All rights reserved)

Full Sun
Moderate watering
Tender

H2

RHS hardiness

1°C

Minimum temperature

Expected size

Height
Spread

1m

Max

60cm

45cm

Min

15cm

Flowering

  • spring
  • summer
  • autumn
  • winter

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A photo of Flower of an hour
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A photo of Flower of an hour
A photo of Flower of an hour
A photo of Flower of an hour

Flower of an hour Overview

This species may be an annual or biennial herb or subshrub growing to about 1m with a spread of 60cm. The leaves are hairy and usually divided into deep lobes. In the summer and autumn it will produces small pale yellow flowers with a deep crimson, almost black centre.

Common problems with Flower of an hour

How to propagate Flower of an hour

Cuttings

Seed in spring, shrubs and trees by greenwood cuttings in late spring. Semi-ripe cuttings in summer, perennials by division in autumn or spring.

Seed

Division

Other uses of Flower of an hour

Grown for their flowers. Suitable for coastal conditions.