Deno’s Garden

Dicentra cucullaria

Genus Dicentra

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 September 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  4. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

Steps after step 2 run on after germination.

about 6 months from start to sowing. Germination time not stated; 21 days assumed.

38% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Dicentra p. 132Public domain
Show the original text
Dicentra (Fumariaceae). DS is either fatal or severely deleterious. J. Forrest reported that D. cucullaria germ. best with fresh seed in 70-40(21%)-70-40(7%) and 40- 70(38%)-40-70. A branching root system is formed. The seedlings then require several months at 40 before the cotyledons will develop at 70. During this time many of the germ. seedlings will rot if the the seedlings in the towel are not aerated with sufficient frequency. The exact requirements for inducing cotyledon development. need more study. -
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Dicentra p. 132. 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 September 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 2026.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    7 germinated in this phase.

Steps after step 2 run on after germination.

about 6 months from start to sowing. Germination time not stated; 21 days assumed.

21% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Dicentra p. 132Public domain
Show the original text
Dicentra (Fumariaceae). DS is either fatal or severely deleterious. J. Forrest reported that D. cucullaria germ. best with fresh seed in 70-40(21%)-70-40(7%) and 40- 70(38%)-40-70. A branching root system is formed. The seedlings then require several months at 40 before the cotyledons will develop at 70. During this time many of the germ. seedlings will rot if the the seedlings in the towel are not aerated with sufficient frequency. The exact requirements for inducing cotyledon development. need more study. -
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Dicentra p. 132. 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.