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Phemeranthus sediformis

Okanagan Fameflower · Okanagan Talinum · Okanogan Fameflower

Family MontiaceaeGenus Phemeranthus

Also published as Talinum okanoganense. You are in the right place.

White star flowers with yellow stamens over blue-green succulent leaves
FlowerShane JohnsonCC0

About the plant

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

Habit
succulent subshrubPlants of the World Online
Habit
Perennial, Forb/herbPLANTS Database
Flower
WhiteFlora of North America
Native range
British Columbia, WashingtonGBIF 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

  • Found only in the Okanagan Highlands and Kettle River Range of Washington and British Columbia. John Jeffrey collected it in 1851, but it was not named until 1933–34. Wikipedia: Phemeranthus sediformis

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around January 11, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

    48%, at 10-12 weeks -- it germinates in the cold.

  2. Warm moist stratification

    Temperature: 70°F 21°C

    A further 36%, over 2-16 days.

Germination happens during step 2, in 84 days.

48% germination in 70–84 days.

Nearly half comes up in the cold itself, and a third more again after the move.

This source doesn't state how long step 1 lasts.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, TalinumPublic domain
Show the original text
Talinum (Portulacaceae). Sowing at 40was better than sowing at 70. T. okanoganense germ. 40(48% in 10-12 w)-70(36% in 2-16 d) and none at 70..
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Talinum. 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.

Protocol 2

DerivedN. C. Deno, 1993
  1. Sow and cover

    Temperature: 70°F 21°C

    Nothing.

No stated waiting before sowing.

0% germination.

Nothing at all. Deno's rule for the genus holds here: sowing at 40 beats sowing at 70.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, TalinumPublic domain
Show the original text
Talinum (Portulacaceae). Sowing at 40was better than sowing at 70. T. okanoganense germ. 40(48% in 10-12 w)-70(36% in 2-16 d) and none at 70..
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Talinum. Quoted exactly. Every value on this card comes from this record; the step names come from a fixed list.

Germination trials

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

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