Deno’s Garden

Silene gallica

Genus Silene

This source reports 4 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Low Rated by us, not by the source.

Start around October 2, 2026 for a May 3 last frost.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: light

about 6 months from start to sowing. Then 5 days to germinate.

100% germination in 5 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Silene p. 78Public domain
Show the original text
Silene (Caryophyllaceae). S. gallica seed DS 6 m germ. 70L(100% on 5th d), 70D(75% on 5th d), OT(31% in March), and 40(5%)-70D. After 1 y DS the seeds germ. 100% in 3-5 d in either 70L or 70D. It is suspected that fresh seeds had a light requirement which had largely disappeared in the seeds DS 6 m and had completely disappeared in seeds DS 1 y. The prior 3 m at 40 was largely fatal which is surprising.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Silene p. 78. 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 Low Rated by us, not by the source.

Start around October 2, 2026 for a May 3 last frost.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: dark

about 6 months from start to sowing. Then 5 days to germinate.

75% germination in 5 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Silene p. 78Public domain
Show the original text
Silene (Caryophyllaceae). S. gallica seed DS 6 m germ. 70L(100% on 5th d), 70D(75% on 5th d), OT(31% in March), and 40(5%)-70D. After 1 y DS the seeds germ. 100% in 3-5 d in either 70L or 70D. It is suspected that fresh seeds had a light requirement which had largely disappeared in the seeds DS 6 m and had completely disappeared in seeds DS 1 y. The prior 3 m at 40 was largely fatal which is surprising.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Silene p. 78. 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 3

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Sow outdoors and leave it

    Up in March.

about 6 months from start to sowing.

31% germination.

This source doesn't state how long.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Silene p. 78Public domain
Show the original text
Silene (Caryophyllaceae). S. gallica seed DS 6 m germ. 70L(100% on 5th d), 70D(75% on 5th d), OT(31% in March), and 40(5%)-70D. After 1 y DS the seeds germ. 100% in 3-5 d in either 70L or 70D. It is suspected that fresh seeds had a light requirement which had largely disappeared in the seeds DS 6 m and had completely disappeared in seeds DS 1 y. The prior 3 m at 40 was largely fatal which is surprising.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Silene p. 78. 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 4

DerivedN. C. Deno, 1996

Difficulty Very high Rated by us, not by the source.

Start around June 19, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on June 18, 2026.

  1. Dry storage

    Duration: 180 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 Light: dark

Steps after step 2 run on after germination.

about 9 months from start to sowing. Germination time not stated; 21 days assumed.

5% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Silene p. 78Public domain
Show the original text
Silene (Caryophyllaceae). S. gallica seed DS 6 m germ. 70L(100% on 5th d), 70D(75% on 5th d), OT(31% in March), and 40(5%)-70D. After 1 y DS the seeds germ. 100% in 3-5 d in either 70L or 70D. It is suspected that fresh seeds had a light requirement which had largely disappeared in the seeds DS 6 m and had completely disappeared in seeds DS 1 y. The prior 3 m at 40 was largely fatal which is surprising.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Silene p. 78. 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.