Deno’s Garden

Thalictrum tuberosum

Genus Thalictrum

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 July 23, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on July 22, 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 77 days to germinate.

100% germination in 56–77 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Thalictrum p. 220Public domain
Show the original text
Thalictrum (Ranunculaceae). Germination in this genus was found to be dramatically stimulated by GA-3. The seedlings are normal and healthy. This is a great benefit because otherwise germination is low and much extended in most of the species. In general DS is not tolerated. Light was not used in this genus. T. tuberosum germ. 40-70(1/4 on 6th d) and .70-40(4/4 in 8-11 w). T. •uchiyamai experiments are only 2 w old. Seeds are germinating at 70 with or without GA-3.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Thalictrum p. 220. 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 High Rated by us, not by the source.

Start around October 1, 2026 for a May 3 last frost.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

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

25% germination in 6 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Thalictrum p. 220Public domain
Show the original text
Thalictrum (Ranunculaceae). Germination in this genus was found to be dramatically stimulated by GA-3. The seedlings are normal and healthy. This is a great benefit because otherwise germination is low and much extended in most of the species. In general DS is not tolerated. Light was not used in this genus. T. tuberosum germ. 40-70(1/4 on 6th d) and .70-40(4/4 in 8-11 w). T. •uchiyamai experiments are only 2 w old. Seeds are germinating at 70 with or without GA-3.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Thalictrum p. 220. 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.