Deno’s Garden

Iris tuberosa

Genus Iris

Protocol

DerivedN. C. Deno, 1993

Difficulty High Rated by us, not by the source.

  1. Warm moist stratification

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

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    1/4 germinated in this phase.

Steps after step 1 run on after germination.

about 3 months from start to sowing. Then 42 days to germinate.

25% germination in 42 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Hermodactylus p. 152Public domain
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Hermodactylus (Iridaceae). H. tuberosus germ., 70D(1/4 in 6th w)-40(1/4 in 3rd w) and 40-70(none).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Hermodactylus p. 152. 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.