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Erythronium revolutum

Coast Fawn Lily · Mahogany Fawn Lily · Pink Fawn Lily · Mahogany Fawnlily

Family LiliaceaeGenus Erythronium

Nodding pink and white lilies with reflexed petals and yellow anthers, on thin stems above broad glossy leaves.
FlowerStan ShebsCC BY-SA 3.0

About the plant

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

Habit
bulbous geophytePlants of the World Online
Habit
Perennial, Forb/herbPLANTS Database
Flower
Violet-pinkFlora of North America
Native range
British Columbia, California, Oregon, 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

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty High Rated by us, not by the source.

Start around August 20, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on August 19, 2026.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    33 germinated in this phase.

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 6 months from start to step 3. Germination happens during step 3, in 49 days.

40% germination in 0–49 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Erythronium p. 140Public domain
Show the original text
Erythronium (Liliaceae). E. revolutum germ. 70-40(33% in 12th w)-70(40% in 0-7 w) and none in 40(aIl rotted). Seed that germ. at 40 formed the cotyledon (epigeal) within a week at 40 and grew better than the seed that germ. at 70. Most of the seed would probably have germ. at 40 if the time were extended beyond 3 m.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Erythronium p. 140. 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. Cold moist stratification

    Temperature: 40°F 4°C

Germination happens during step 1.

0% germination.

Nothing germinated at 40.

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

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Erythronium p. 140Public domain
Show the original text
Erythronium (Liliaceae). E. revolutum germ. 70-40(33% in 12th w)-70(40% in 0-7 w) and none in 40(aIl rotted). Seed that germ. at 40 formed the cotyledon (epigeal) within a week at 40 and grew better than the seed that germ. at 70. Most of the seed would probably have germ. at 40 if the time were extended beyond 3 m.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Erythronium p. 140. Quoted exactly. Every value on this card comes from this record; 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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