Deno’s Garden

Inula helenium

Genus Inula

Protocol

DerivedN. C. Deno, 1998

Difficulty High Rated by us, not by the source.

  1. Dry storage

    Duration: 730 daysTemperature: 70°F 21°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  4. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

    1/17 germinated in this phase.

Steps after step 2 run on after germination.

about 2 years from start to sowing. Then 42 days to germinate.

18% germination in 14–42 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Inula p. 39Public domain
Show the original text
Inula (Asteraceae). I. helenium DS 2 y germ. 70D(3/17 in 2-6 w)-40- 70D(1/17) and seeds DS 3 y germ. 70D(T/16 in 4th w).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Inula p. 39. 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.