Deno’s Garden

Asarum canadense

Genus Asarum

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 June 25, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on June 24, 2026.

  1. Clean the flesh off the seed

  2. Leach in running water

    Duration: 14 days

    Washed and cleaned daily for 2 weeks.

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    2 germinated in this phase.

  4. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 6 months from start to sowing. Then 91 days to germinate.

53% germination in 70–91 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Asarum p. 102Public domain
Show the original text
Asarum (Aristolochiaceae). The two species had large numbers of empty seed coats. The tips of the radicles tended to die in the seedlings which led to death of the seedling. For the moment it is recommended to transfer the germinated seedlings immediately to media and place outdoors. GA-3 needs to be tried. A. canadensis seed was collected in June and WC for 2 w. The long WC treatment is essential and seeds not WC failed to germinate. After the WC each seed was gently squeezed and 50% found to be empty seed coats. These were discarded. Fresh WC seed put outdoors in June germ. 48% in October suggesting that oscillating temperature were required. Seed sown at 40 germ. 40(2%)-70(53% in 10-13 w), note • ¶4 'HJq'C 4 if ' It 103 - - the long induction time at 70. Seed sown at 70 germ. 70-40(19% in 3rd w). To add to the confusion, the same seed sown in 70L failed to germinate and all rotted. All DS seed rotted and was dead so at least that point is settled. •
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Asarum p. 102. 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 3, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 2, 2026.

  1. Clean the flesh off the seed

  2. Leach in running water

    Duration: 14 days

    Washed and cleaned daily for 2 weeks.

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 6 months from start to sowing. Then 21 days to germinate.

19% germination in 21 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Asarum p. 102Public domain
Show the original text
Asarum (Aristolochiaceae). The two species had large numbers of empty seed coats. The tips of the radicles tended to die in the seedlings which led to death of the seedling. For the moment it is recommended to transfer the germinated seedlings immediately to media and place outdoors. GA-3 needs to be tried. A. canadensis seed was collected in June and WC for 2 w. The long WC treatment is essential and seeds not WC failed to germinate. After the WC each seed was gently squeezed and 50% found to be empty seed coats. These were discarded. Fresh WC seed put outdoors in June germ. 48% in October suggesting that oscillating temperature were required. Seed sown at 40 germ. 40(2%)-70(53% in 10-13 w), note • ¶4 'HJq'C 4 if ' It 103 - - the long induction time at 70. Seed sown at 70 germ. 70-40(19% in 3rd w). To add to the confusion, the same seed sown in 70L failed to germinate and all rotted. All DS seed rotted and was dead so at least that point is settled. •
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Asarum p. 102. 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.