Deno’s Garden

Silene ruprechtii

Genus Silene

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty High Rated by us, not by the source.

Start around December 29, 2026 for a May 3 last frost.

  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

Steps after step 1 run on after germination.

about 3 months from start to sowing. Then 7 days to germinate.

28% germination in 3–7 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Silene p. 214Public domain
Show the original text
Silene (Caryophyllaceae). While many Silene germ. at 70 like typical Caryophyllaceae, complex patterns and photoeffects were found in some species. OS seed of the following species germ. in 2-5 w at 70: S. ruprechti germ. 70(28% in 3-7 d)-40-70 and 40(4%)-70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Silene p. 214. 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 Very high Rated by us, not by the source.

Start around December 15, 2026 for a May 3 last frost.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

Steps after step 1 run on after germination.

about 3 months from start to sowing. Germination time not stated; 21 days assumed.

4% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Silene p. 214Public domain
Show the original text
Silene (Caryophyllaceae). While many Silene germ. at 70 like typical Caryophyllaceae, complex patterns and photoeffects were found in some species. OS seed of the following species germ. in 2-5 w at 70: S. ruprechti germ. 70(28% in 3-7 d)-40-70 and 40(4%)-70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Silene p. 214. 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.