Deno’s Garden

Amelanchier stolonifera

Genus Amelanchier

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty High Rated by us, not by the source.

Start around January 7, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on January 6, 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

  5. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  6. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

Steps after step 5 run on after germination.

about 15 months from start to sowing. Then 4 days to germinate.

60% germination in 2–4 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Amelanchier p. 19Public domain
Show the original text
Amelanchier (Rosaceae). All seeds were WC 7 d, all experiments were conducted in the dark, and neither GA-3 or OT initiated germination. A. stolonifera germ 40-70(40% in 2-20 d)-40-70-40-70 and 70-40-70-40- 70(60% in 2-4 d)-40. Seeds DS 1 y were dead.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Amelanchier p. 19. 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, 1996

Difficulty High Rated by us, not by the source.

Start around September 18, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 17, 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

  5. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  6. 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. Then 20 days to germinate.

40% germination in 2–20 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Amelanchier p. 19Public domain
Show the original text
Amelanchier (Rosaceae). All seeds were WC 7 d, all experiments were conducted in the dark, and neither GA-3 or OT initiated germination. A. stolonifera germ 40-70(40% in 2-20 d)-40-70-40-70 and 70-40-70-40- 70(60% in 2-4 d)-40. Seeds DS 1 y were dead.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Amelanchier p. 19. 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.