Deno’s Garden

Hepatica acutiloba

Genus Hepatica

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 August 27, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on August 26, 2026.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 6 months from start to sowing. Then 42 days to germinate.

88% germination in 28–42 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Hepatica p. 152Public domain
Show the original text
Hepatica (Ranunculaceae). The three species germ. strictly at 40 and best if preceded by a 3 m cycle at 70. DS was fatal. Only the radicle develops at 40, and a major problem was getting the cotyledons to develop on shifting to 70. It is likely that gradually increasing the T from 40 to 70 would have given much better results. H. acutiloba germ. 70-40(36% in 7-10 w). Germination was somewhat better if the seed were washed with dilute Clorox (dilute aqueous NaOCI) and such seed germ. 70-40(88% in 4-6 w). Curiously, those sown outdoors or at 40 all rotted.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Hepatica p. 152. 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

Difficulty Moderate Rated by us, not by the source.

Start around July 30, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on July 29, 2026.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 6 months from start to sowing. Then 70 days to germinate.

36% germination in 49–70 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Hepatica p. 152Public domain
Show the original text
Hepatica (Ranunculaceae). The three species germ. strictly at 40 and best if preceded by a 3 m cycle at 70. DS was fatal. Only the radicle develops at 40, and a major problem was getting the cotyledons to develop on shifting to 70. It is likely that gradually increasing the T from 40 to 70 would have given much better results. H. acutiloba germ. 70-40(36% in 7-10 w). Germination was somewhat better if the seed were washed with dilute Clorox (dilute aqueous NaOCI) and such seed germ. 70-40(88% in 4-6 w). Curiously, those sown outdoors or at 40 all rotted.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Hepatica p. 152. 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.