Deno’s Garden

Fritillaria meleagris

Genus Fritillaria

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 July 5, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on July 4, 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

about 9 months from start to sowing. Then 5 days to germinate.

70% germination in 1–5 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Fritillaria p. 144Public domain
Show the original text
Fritillaria (Liliaceae). This genus germ. primarily at 40. Sometimes this had to be preceded by a cycle at 70 making the species a 70-40 germinator. The seedlings did not always develop, and it is probable that this was the result of shifting them to 70 too suddenly. More study is needed on this problem. Some species showed intolerance to DS, particularly F. meleagris germ. best with fresh seed in 70-40-70(70% largely in 1-5 d). The cotyledon develops within a week of germination. Germination was less when sown at 40 as shown by 40-70-40(3%)-70(8%)-40-70(5%). Seed DS 6 m at 70 was dead and seed DS 6 m at 40 was largely dead.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Fritillaria p. 144. 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 High Rated by us, not by the source.

Start around December 21, 2026 for a May 3 last frost. Too late for spring 2027 — that needed starting on December 20, 2025.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  4. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    20 germinated in this phase.

  5. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 15 months from start to sowing. Germination time not stated; 21 days assumed.

60% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Fritillaria p. 144Public domain
Show the original text
Fritillaria (Liliaceae). This genus germ. primarily at 40. Sometimes this had to be preceded by a cycle at 70 making the species a 70-40 germinator. The seedlings did not always develop, and it is probable that this was the result of shifting them to 70 too suddenly. More study is needed on this problem. Some species showed intolerance to DS, particularly F. pallida germ. 40-70-40-70(20%)-40(60%) using fresh seed. Seed DS 6 m at 70 germ. 70-40-70(4%)-40(37%)-70(15%)-40(22%)-70(15%) and 40(2%)-70(7%)- 40(7%)-70(30%)-40(47%)-7o(5%). These patterns are essentially of the 70-40-70-40 type. It is possible that these would have been reduced to a 70-40 pattern if longer cycle times had been used.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Fritillaria p. 144. 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 June 24, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on June 23, 2025.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    2 germinated in this phase.

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    7 germinated in this phase.

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    7 germinated in this phase.

  5. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    30 germinated in this phase.

  6. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 1.5 years from start to sowing. Germination time not stated; 21 days assumed.

47% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Fritillaria p. 144Public domain
Show the original text
Fritillaria (Liliaceae). This genus germ. primarily at 40. Sometimes this had to be preceded by a cycle at 70 making the species a 70-40 germinator. The seedlings did not always develop, and it is probable that this was the result of shifting them to 70 too suddenly. More study is needed on this problem. Some species showed intolerance to DS, particularly F. pallida germ. 40-70-40-70(20%)-40(60%) using fresh seed. Seed DS 6 m at 70 germ. 70-40-70(4%)-40(37%)-70(15%)-40(22%)-70(15%) and 40(2%)-70(7%)- 40(7%)-70(30%)-40(47%)-7o(5%). These patterns are essentially of the 70-40-70-40 type. It is possible that these would have been reduced to a 70-40 pattern if longer cycle times had been used.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Fritillaria p. 144. 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 September 22, 2026 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 21, 2025.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  4. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    4 germinated in this phase.

  5. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  6. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    15 germinated in this phase.

  7. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    22 germinated in this phase.

  8. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    15 germinated in this phase.

Steps after step 5 run on after germination.

about 18 months from start to sowing. Germination time not stated; 21 days assumed.

37% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Fritillaria p. 144Public domain
Show the original text
Fritillaria (Liliaceae). This genus germ. primarily at 40. Sometimes this had to be preceded by a cycle at 70 making the species a 70-40 germinator. The seedlings did not always develop, and it is probable that this was the result of shifting them to 70 too suddenly. More study is needed on this problem. Some species showed intolerance to DS, particularly F. pallida germ. 40-70-40-70(20%)-40(60%) using fresh seed. Seed DS 6 m at 70 germ. 70-40-70(4%)-40(37%)-70(15%)-40(22%)-70(15%) and 40(2%)-70(7%)- 40(7%)-70(30%)-40(47%)-7o(5%). These patterns are essentially of the 70-40-70-40 type. It is possible that these would have been reduced to a 70-40 pattern if longer cycle times had been used.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Fritillaria p. 144. 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 Very high Rated by us, not by the source.

Start around March 21, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on March 20, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    3 germinated in this phase.

  4. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  5. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  6. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    5 germinated in this phase.

Steps after step 4 run on after germination.

about 12 months from start to sowing. Germination time not stated; 21 days assumed.

8% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Fritillaria p. 144Public domain
Show the original text
Fritillaria (Liliaceae). This genus germ. primarily at 40. Sometimes this had to be preceded by a cycle at 70 making the species a 70-40 germinator. The seedlings did not always develop, and it is probable that this was the result of shifting them to 70 too suddenly. More study is needed on this problem. Some species showed intolerance to DS, particularly F. meleagris germ. best with fresh seed in 70-40-70(70% largely in 1-5 d). The cotyledon develops within a week of germination. Germination was less when sown at 40 as shown by 40-70-40(3%)-70(8%)-40-70(5%). Seed DS 6 m at 70 was dead and seed DS 6 m at 40 was largely dead.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Fritillaria p. 144. 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.