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Hibiscus trionum

Bladder Ketmia · Flower of an Hour · Venice Mallow

Family MalvaceaeGenus Hibiscus

A creamy white cup-shaped flower with a deep maroon center and orange stamens among deeply cut leaves
FlowerNo machine-readable author provided. Bogdan assumed (based on copyright claims).CC BY-SA 3.0

About the plant

What it is and where it grows — not part of any germination protocol.

Habit
annual or biennialPlants of the World Online
Habit
Annual, Forb/herbPLANTS Database
Flower
Yellow, creamFlora of North America
Native range
Afghanistan, Albania, Algeria, Bulgaria, Cyprus, Czechia-Slovakia and elsewhereGBIF Backbone Taxonomy

Toxicity is noted only where a source states it. No note here is not a finding of safety.

Sources: Plants of the World Online — Royal Botanic Gardens, Kew; PLANTS Database — USDA NRCS; Flora of North America — Flora of North America Editorial Committee; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

  • Called flower-of-an-hour. In the United States, where it was brought as an ornamental, it is now a weed of cropland and vacant lots. Wikipedia: Hibiscus trionum

Protocol

DerivedN. C. Deno, 1998

Difficulty Moderate Rated by us, not by the source.

  1. Dry storage

    Duration: 730 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: dark

about 2 years from start to sowing. Then 2 days to germinate.

30% germination in 2 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Hibiscus p. 38Public domain
Show the original text
Hibiscus (Malvaceae). H. trionum DS 2 y or 3 y germ. 70D(30% on 2nd d) the same as seeds DS 1 y.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Hibiscus p. 38. Quoted exactly. Every value on this card comes from this record, except the difficulty rating, which is ours; the step names come from a fixed list.

How each step is done, in Deno’s words, and what Verified and Derived mean.

Germination trials

Readers’ own records of sowing this species, published after review. Share your trial · All trials

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