Deno’s Garden

Erythronium revolutum

Genus Erythronium

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 May 22, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on May 21, 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 9 months from start to sowing. Then 49 days to germinate.

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

No stated waiting before sowing.

0% germination.

Nothing germinated at 40.

This source doesn't state how long.

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.