Deno’s Garden

Scilla bifolia

Genus Scilla

This source reports 5 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around June 12, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on June 11, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    1 germinated in this phase.

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  4. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    2 germinated in this phase.

Steps after step 3 run on after germination.

about 9 months from start to sowing. Then 28 days to germinate.

76% germination in 14–28 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Scilla p. 212Public domain
Show the original text
Scilla (Liliaceae). S. bifolia germ. best with seed DS 6 m at 70 in 40(70% in 2-4 w)-70(6%)- 40(2%). The seedlings must remain at 40 for the full 3 m cycle. If shifted to 70 too quickly, the cotyledons fail to develop. Curiously, germination failed completely if the 05 seed were sown at 70. Fresh seed gave a different pattern and a more extended germination as shown by 70-40(64%)-70(21%)-40-70(2%)-40-70(2%) and 40-70(1%)- 40(76% in 2-4 w)-70(2%). Seed 05 6 m at 40 gave an intermediate behavior as shown by 70-40(34%)-70(11%)-40-70 and 40(52%)-70(22%)-40-70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Scilla p. 212. 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 Moderate Rated by us, not by the source.

Start around June 12, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on June 11, 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

    6 germinated in this phase.

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    2 germinated in this phase.

Steps after step 2 run on after germination.

about 9 months from start to sowing. Then 28 days to germinate.

70% germination in 14–28 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Scilla p. 212Public domain
Show the original text
Scilla (Liliaceae). S. bifolia germ. best with seed DS 6 m at 70 in 40(70% in 2-4 w)-70(6%)- 40(2%). The seedlings must remain at 40 for the full 3 m cycle. If shifted to 70 too quickly, the cotyledons fail to develop. Curiously, germination failed completely if the 05 seed were sown at 70. Fresh seed gave a different pattern and a more extended germination as shown by 70-40(64%)-70(21%)-40-70(2%)-40-70(2%) and 40-70(1%)- 40(76% in 2-4 w)-70(2%). Seed 05 6 m at 40 gave an intermediate behavior as shown by 70-40(34%)-70(11%)-40-70 and 40(52%)-70(22%)-40-70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Scilla p. 212. 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, 1993

Difficulty High Rated by us, not by the source.

Start around September 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 2026.

  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

    21 germinated in this phase.

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  5. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    2 germinated in this phase.

  6. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  7. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    2 germinated in this phase.

Steps after step 2 run on after germination.

about 6 months from start to sowing. Germination time not stated; 21 days assumed.

64% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Scilla p. 212Public domain
Show the original text
Scilla (Liliaceae). S. bifolia germ. best with seed DS 6 m at 70 in 40(70% in 2-4 w)-70(6%)- 40(2%). The seedlings must remain at 40 for the full 3 m cycle. If shifted to 70 too quickly, the cotyledons fail to develop. Curiously, germination failed completely if the 05 seed were sown at 70. Fresh seed gave a different pattern and a more extended germination as shown by 70-40(64%)-70(21%)-40-70(2%)-40-70(2%) and 40-70(1%)- 40(76% in 2-4 w)-70(2%). Seed 05 6 m at 40 gave an intermediate behavior as shown by 70-40(34%)-70(11%)-40-70 and 40(52%)-70(22%)-40-70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Scilla p. 212. 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, 1993

Difficulty 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

    22 germinated in this phase.

  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 1 run on after germination.

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

52% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Scilla p. 212Public domain
Show the original text
Scilla (Liliaceae). S. bifolia germ. best with seed DS 6 m at 70 in 40(70% in 2-4 w)-70(6%)- 40(2%). The seedlings must remain at 40 for the full 3 m cycle. If shifted to 70 too quickly, the cotyledons fail to develop. Curiously, germination failed completely if the 05 seed were sown at 70. Fresh seed gave a different pattern and a more extended germination as shown by 70-40(64%)-70(21%)-40-70(2%)-40-70(2%) and 40-70(1%)- 40(76% in 2-4 w)-70(2%). Seed 05 6 m at 40 gave an intermediate behavior as shown by 70-40(34%)-70(11%)-40-70 and 40(52%)-70(22%)-40-70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Scilla p. 212. 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 5

DerivedN. C. Deno, 1993

Difficulty High Rated by us, not by the source.

Start around September 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 2026.

  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

    11 germinated in this phase.

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  5. 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. Germination time not stated; 21 days assumed.

34% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Scilla p. 212Public domain
Show the original text
Scilla (Liliaceae). S. bifolia germ. best with seed DS 6 m at 70 in 40(70% in 2-4 w)-70(6%)- 40(2%). The seedlings must remain at 40 for the full 3 m cycle. If shifted to 70 too quickly, the cotyledons fail to develop. Curiously, germination failed completely if the 05 seed were sown at 70. Fresh seed gave a different pattern and a more extended germination as shown by 70-40(64%)-70(21%)-40-70(2%)-40-70(2%) and 40-70(1%)- 40(76% in 2-4 w)-70(2%). Seed 05 6 m at 40 gave an intermediate behavior as shown by 70-40(34%)-70(11%)-40-70 and 40(52%)-70(22%)-40-70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Scilla p. 212. 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.