Deno’s Garden

Allium tricoccum

Genus Allium

This source reports 8 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Low Rated by us, not by the source.

Start around August 13, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on August 12, 2026.

  1. Dry storage

    Duration: 180 daysTemperature: 40°F 4°C

  2. Cold moist stratification

    Temperature: 40°F 4°C

about 6 months from start to sowing. Then 56 days to germinate.

100% germination in 56 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Allium p. 91Public domain
Show the original text
Allium (Liliaceae). This genus showed much diversity. Germination patterns ranged from simple D-70 in A. tricoccum germination was complex and is not completely understood. Seed collected in October 1989 germ. best in 40-70(95% in 10-16w) and much less in 70- 40-70-40(2%)-70(7%). Note that in the 40-70 treatment the seed was kept an additional 4 w at 70 in the last cycle because germination was continuing. This same seed germ. 86% in August and October of 1990 from sowing outdoors in October 1989. Note that this is Dqt the usual germination in spring from sowing in fall. These results taken together indicate that a prolonged period at 70 is necessary, and it is intended to conduct an experiment in which fresh seed is kept for a year at 70. A small sample of seed collected a year earlier (September 1988) gave considerably different results. This seed germ. 70(3/5 in 9-10 w) and 40-70-40(4/4 in 3 d) for the fresh seed, 40-70(1/3) and 70-40-70(none) for seed DS 6 m at 70, and 40-70(2/3) and 70(4/4 in 8th w) for seed DS 6 m at 40. The germination is intermediate between epigeal and hypogeal in that the cotyledons partially develops and do some photosynthesis but never completely emerge from the seed coats. The seedlings must in general be kept at least 3 m at 40 before the true leaf will develop on shifting to 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Allium p. 91. 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 Low Rated by us, not by the source.

Start around August 13, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on August 12, 2026.

  1. Dry storage

    Duration: 180 daysTemperature: 40°F 4°C

  2. Sow and cover

    Temperature: 70°F 21°C

about 6 months from start to sowing. Then 56 days to germinate.

100% germination in 56 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Allium p. 91Public domain
Show the original text
Allium (Liliaceae). This genus showed much diversity. Germination patterns ranged from simple D-70 in A. tricoccum germination was complex and is not completely understood. Seed collected in October 1989 germ. best in 40-70(95% in 10-16w) and much less in 70- 40-70-40(2%)-70(7%). Note that in the 40-70 treatment the seed was kept an additional 4 w at 70 in the last cycle because germination was continuing. This same seed germ. 86% in August and October of 1990 from sowing outdoors in October 1989. Note that this is Dqt the usual germination in spring from sowing in fall. These results taken together indicate that a prolonged period at 70 is necessary, and it is intended to conduct an experiment in which fresh seed is kept for a year at 70. A small sample of seed collected a year earlier (September 1988) gave considerably different results. This seed germ. 70(3/5 in 9-10 w) and 40-70-40(4/4 in 3 d) for the fresh seed, 40-70(1/3) and 70-40-70(none) for seed DS 6 m at 70, and 40-70(2/3) and 70(4/4 in 8th w) for seed DS 6 m at 40. The germination is intermediate between epigeal and hypogeal in that the cotyledons partially develops and do some photosynthesis but never completely emerge from the seed coats. The seedlings must in general be kept at least 3 m at 40 before the true leaf will develop on shifting to 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Allium p. 91. 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 Moderate Rated by us, not by the source.

Start around January 8, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on January 7, 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

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 15 months from start to sowing. Then 3 days to germinate.

100% germination in 3 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Allium p. 91Public domain
Show the original text
Allium (Liliaceae). This genus showed much diversity. Germination patterns ranged from simple D-70 in A. tricoccum germination was complex and is not completely understood. Seed collected in October 1989 germ. best in 40-70(95% in 10-16w) and much less in 70- 40-70-40(2%)-70(7%). Note that in the 40-70 treatment the seed was kept an additional 4 w at 70 in the last cycle because germination was continuing. This same seed germ. 86% in August and October of 1990 from sowing outdoors in October 1989. Note that this is Dqt the usual germination in spring from sowing in fall. These results taken together indicate that a prolonged period at 70 is necessary, and it is intended to conduct an experiment in which fresh seed is kept for a year at 70. A small sample of seed collected a year earlier (September 1988) gave considerably different results. This seed germ. 70(3/5 in 9-10 w) and 40-70-40(4/4 in 3 d) for the fresh seed, 40-70(1/3) and 70-40-70(none) for seed DS 6 m at 70, and 40-70(2/3) and 70(4/4 in 8th w) for seed DS 6 m at 40. The germination is intermediate between epigeal and hypogeal in that the cotyledons partially develops and do some photosynthesis but never completely emerge from the seed coats. The seedlings must in general be kept at least 3 m at 40 before the true leaf will develop on shifting to 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Allium p. 91. 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 Moderate Rated by us, not by the source.

Start around June 18, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on June 17, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 6 months from start to sowing. Then 112 days to germinate.

95% germination in 70–112 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Allium p. 91Public domain
Show the original text
Allium (Liliaceae). This genus showed much diversity. Germination patterns ranged from simple D-70 in A. tricoccum germination was complex and is not completely understood. Seed collected in October 1989 germ. best in 40-70(95% in 10-16w) and much less in 70- 40-70-40(2%)-70(7%). Note that in the 40-70 treatment the seed was kept an additional 4 w at 70 in the last cycle because germination was continuing. This same seed germ. 86% in August and October of 1990 from sowing outdoors in October 1989. Note that this is Dqt the usual germination in spring from sowing in fall. These results taken together indicate that a prolonged period at 70 is necessary, and it is intended to conduct an experiment in which fresh seed is kept for a year at 70. A small sample of seed collected a year earlier (September 1988) gave considerably different results. This seed germ. 70(3/5 in 9-10 w) and 40-70-40(4/4 in 3 d) for the fresh seed, 40-70(1/3) and 70-40-70(none) for seed DS 6 m at 70, and 40-70(2/3) and 70(4/4 in 8th w) for seed DS 6 m at 40. The germination is intermediate between epigeal and hypogeal in that the cotyledons partially develops and do some photosynthesis but never completely emerge from the seed coats. The seedlings must in general be kept at least 3 m at 40 before the true leaf will develop on shifting to 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Allium p. 91. 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 Moderate 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. Dry storage

    Duration: 180 daysTemperature: 40°F 4°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

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

67% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Allium p. 91Public domain
Show the original text
Allium (Liliaceae). This genus showed much diversity. Germination patterns ranged from simple D-70 in A. tricoccum germination was complex and is not completely understood. Seed collected in October 1989 germ. best in 40-70(95% in 10-16w) and much less in 70- 40-70-40(2%)-70(7%). Note that in the 40-70 treatment the seed was kept an additional 4 w at 70 in the last cycle because germination was continuing. This same seed germ. 86% in August and October of 1990 from sowing outdoors in October 1989. Note that this is Dqt the usual germination in spring from sowing in fall. These results taken together indicate that a prolonged period at 70 is necessary, and it is intended to conduct an experiment in which fresh seed is kept for a year at 70. A small sample of seed collected a year earlier (September 1988) gave considerably different results. This seed germ. 70(3/5 in 9-10 w) and 40-70-40(4/4 in 3 d) for the fresh seed, 40-70(1/3) and 70-40-70(none) for seed DS 6 m at 70, and 40-70(2/3) and 70(4/4 in 8th w) for seed DS 6 m at 40. The germination is intermediate between epigeal and hypogeal in that the cotyledons partially develops and do some photosynthesis but never completely emerge from the seed coats. The seedlings must in general be kept at least 3 m at 40 before the true leaf will develop on shifting to 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Allium p. 91. 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 6

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around July 30, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on July 29, 2026.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C

about 6 months from start to sowing. Then 70 days to germinate.

60% germination in 63–70 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Allium p. 91Public domain
Show the original text
Allium (Liliaceae). This genus showed much diversity. Germination patterns ranged from simple D-70 in A. tricoccum germination was complex and is not completely understood. Seed collected in October 1989 germ. best in 40-70(95% in 10-16w) and much less in 70- 40-70-40(2%)-70(7%). Note that in the 40-70 treatment the seed was kept an additional 4 w at 70 in the last cycle because germination was continuing. This same seed germ. 86% in August and October of 1990 from sowing outdoors in October 1989. Note that this is Dqt the usual germination in spring from sowing in fall. These results taken together indicate that a prolonged period at 70 is necessary, and it is intended to conduct an experiment in which fresh seed is kept for a year at 70. A small sample of seed collected a year earlier (September 1988) gave considerably different results. This seed germ. 70(3/5 in 9-10 w) and 40-70-40(4/4 in 3 d) for the fresh seed, 40-70(1/3) and 70-40-70(none) for seed DS 6 m at 70, and 40-70(2/3) and 70(4/4 in 8th w) for seed DS 6 m at 40. The germination is intermediate between epigeal and hypogeal in that the cotyledons partially develops and do some photosynthesis but never completely emerge from the seed coats. The seedlings must in general be kept at least 3 m at 40 before the true leaf will develop on shifting to 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Allium p. 91. 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 7

DerivedN. C. Deno, 1993

Difficulty Moderate 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. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

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

33% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Allium p. 91Public domain
Show the original text
Allium (Liliaceae). This genus showed much diversity. Germination patterns ranged from simple D-70 in A. tricoccum germination was complex and is not completely understood. Seed collected in October 1989 germ. best in 40-70(95% in 10-16w) and much less in 70- 40-70-40(2%)-70(7%). Note that in the 40-70 treatment the seed was kept an additional 4 w at 70 in the last cycle because germination was continuing. This same seed germ. 86% in August and October of 1990 from sowing outdoors in October 1989. Note that this is Dqt the usual germination in spring from sowing in fall. These results taken together indicate that a prolonged period at 70 is necessary, and it is intended to conduct an experiment in which fresh seed is kept for a year at 70. A small sample of seed collected a year earlier (September 1988) gave considerably different results. This seed germ. 70(3/5 in 9-10 w) and 40-70-40(4/4 in 3 d) for the fresh seed, 40-70(1/3) and 70-40-70(none) for seed DS 6 m at 70, and 40-70(2/3) and 70(4/4 in 8th w) for seed DS 6 m at 40. The germination is intermediate between epigeal and hypogeal in that the cotyledons partially develops and do some photosynthesis but never completely emerge from the seed coats. The seedlings must in general be kept at least 3 m at 40 before the true leaf will develop on shifting to 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Allium p. 91. 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 8

DerivedN. C. Deno, 1993

Difficulty Very 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. 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

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    2 germinated in this phase.

  5. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

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

7% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Allium p. 91Public domain
Show the original text
Allium (Liliaceae). This genus showed much diversity. Germination patterns ranged from simple D-70 in A. tricoccum germination was complex and is not completely understood. Seed collected in October 1989 germ. best in 40-70(95% in 10-16w) and much less in 70- 40-70-40(2%)-70(7%). Note that in the 40-70 treatment the seed was kept an additional 4 w at 70 in the last cycle because germination was continuing. This same seed germ. 86% in August and October of 1990 from sowing outdoors in October 1989. Note that this is Dqt the usual germination in spring from sowing in fall. These results taken together indicate that a prolonged period at 70 is necessary, and it is intended to conduct an experiment in which fresh seed is kept for a year at 70. A small sample of seed collected a year earlier (September 1988) gave considerably different results. This seed germ. 70(3/5 in 9-10 w) and 40-70-40(4/4 in 3 d) for the fresh seed, 40-70(1/3) and 70-40-70(none) for seed DS 6 m at 70, and 40-70(2/3) and 70(4/4 in 8th w) for seed DS 6 m at 40. The germination is intermediate between epigeal and hypogeal in that the cotyledons partially develops and do some photosynthesis but never completely emerge from the seed coats. The seedlings must in general be kept at least 3 m at 40 before the true leaf will develop on shifting to 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Allium p. 91. 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.