Deno’s Garden

Amsonia tabernaemontana

Genus Amsonia

Protocol

DerivedN. C. Deno, 1993

Difficulty High Rated by us, not by the source.

  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. Then 7 days to germinate.

29% germination in 3–7 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Amsonia p. 93Public domain
Show the original text
Amsonia (Apocyanaceae). A. tabernaemontana germ. 40-70(4/14 in 3-7 d)-40-70. When sown at 70, there was no germination over three cycles. -
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Amsonia p. 93. 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.