Deno’s Garden

Gillenia trifoliata

Genus Gillenia

Two sources report 9 treatments between them. All are shown.

Protocol 1

DerivedN. C. Deno, 1996

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing.

0% germination.

Nothing germinated at 70.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Gillenia p. 46Public domain
Show the original text
Gillenia (Rosaceae). DS had a marked effect on germination of G. trifoliata Fresh seed germ. 70 GA-3(24% in 4-12 w)-40-70(32% in 1-3 w), 70% in April in outdoor treatment, and none in 70D or 70L. Seed DS 6 m at 70 germ. 40(50% in 8-10 w)-70(4%), 70 GA-3(4%), and 70D(none). Seed DS 12 m at 70 germ. 40-70D{67% largeiy in 3rd w) and 70D(none). These results are not consistent.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Gillenia p. 46. Quoted exactly. Every value on this card comes from this record; the step names come from a fixed list.

Protocol 2

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

Start around May 1, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on April 30, 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 germinated in this phase.

Steps after step 2 run on after germination.

about 9 months from start to sowing. Then 70 days to germinate.

50% germination in 56–70 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Gillenia p. 46Public domain
Show the original text
Gillenia (Rosaceae). DS had a marked effect on germination of G. trifoliata Fresh seed germ. 70 GA-3(24% in 4-12 w)-40-70(32% in 1-3 w), 70% in April in outdoor treatment, and none in 70D or 70L. Seed DS 6 m at 70 germ. 40(50% in 8-10 w)-70(4%), 70 GA-3(4%), and 70D(none). Seed DS 12 m at 70 germ. 40-70D{67% largeiy in 3rd w) and 70D(none). These results are not consistent.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Gillenia p. 46. 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 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. Gibberellic acid soak

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    24 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

about 9 months from start to sowing. Then 21 days to germinate.

32% germination in 7–21 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Gillenia p. 46Public domain
Show the original text
Gillenia (Rosaceae). DS had a marked effect on germination of G. trifoliata Fresh seed germ. 70 GA-3(24% in 4-12 w)-40-70(32% in 1-3 w), 70% in April in outdoor treatment, and none in 70D or 70L. Seed DS 6 m at 70 germ. 40(50% in 8-10 w)-70(4%), 70 GA-3(4%), and 70D(none). Seed DS 12 m at 70 germ. 40-70D{67% largeiy in 3rd w) and 70D(none). These results are not consistent.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Gillenia p. 46. 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 Low Rated by us, not by the source.

  1. Sow outdoors and leave it

    Up in April.

No stated waiting before sowing.

70% germination.

This source doesn't state how long.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Gillenia p. 46Public domain
Show the original text
Gillenia (Rosaceae). DS had a marked effect on germination of G. trifoliata Fresh seed germ. 70 GA-3(24% in 4-12 w)-40-70(32% in 1-3 w), 70% in April in outdoor treatment, and none in 70D or 70L. Seed DS 6 m at 70 germ. 40(50% in 8-10 w)-70(4%), 70 GA-3(4%), and 70D(none). Seed DS 12 m at 70 germ. 40-70D{67% largeiy in 3rd w) and 70D(none). These results are not consistent.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Gillenia p. 46. 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 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. Cold moist stratification

    Temperature: 40°F 4°C

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

50% germination in 56–70 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Gillenia p. 148Public domain
Show the original text
Gillenia (Rosaceae). G. trifoliata germ. best in 40-70 GA-3(55% in 15 w), less in 70 GA-3(15%), and none in 700, 70L, 4070D, or 40-70L. Seeds placed outdoors in September germ. 55% in April. Seeds DS 6 m at 70 germ. 40(50% in 8-10 w), 70 GA-3(4%), and 70D(none), but these expts. are only 3 m old.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Gillenia p. 148. 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 June 25, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on June 24, 2026.

  1. Gibberellic acid soak

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 6 months from start to sowing. Then 105 days to germinate.

55% germination in 105 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Gillenia p. 148Public domain
Show the original text
Gillenia (Rosaceae). G. trifoliata germ. best in 40-70 GA-3(55% in 15 w), less in 70 GA-3(15%), and none in 700, 70L, 4070D, or 40-70L. Seeds placed outdoors in September germ. 55% in April. Seeds DS 6 m at 70 germ. 40(50% in 8-10 w), 70 GA-3(4%), and 70D(none), but these expts. are only 3 m old.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Gillenia p. 148. 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 High Rated by us, not by the source.

Start around March 15, 2027 for a May 3 last frost.

  1. Gibberellic acid soak

  2. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Germination time not stated; 21 days assumed.

15% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Gillenia p. 148Public domain
Show the original text
Gillenia (Rosaceae). G. trifoliata germ. best in 40-70 GA-3(55% in 15 w), less in 70 GA-3(15%), and none in 700, 70L, 4070D, or 40-70L. Seeds placed outdoors in September germ. 55% in April. Seeds DS 6 m at 70 germ. 40(50% in 8-10 w), 70 GA-3(4%), and 70D(none), but these expts. are only 3 m old.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Gillenia p. 148. 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 September 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 2026.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Gibberellic acid soak

  3. Sow and cover

    Temperature: 70°F 21°C

about 6 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, Gillenia p. 148Public domain
Show the original text
Gillenia (Rosaceae). G. trifoliata germ. best in 40-70 GA-3(55% in 15 w), less in 70 GA-3(15%), and none in 700, 70L, 4070D, or 40-70L. Seeds placed outdoors in September germ. 55% in April. Seeds DS 6 m at 70 germ. 40(50% in 8-10 w), 70 GA-3(4%), and 70D(none), but these expts. are only 3 m old.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Gillenia p. 148. 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 9

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Sow around September 2027 — a date the source gives, not one counted back from a May 3 last frost. Too late for spring 2027 — that needed starting on September 2026.

  1. Sow outdoors and leave it

    Sown outdoors in September; up in April.

No stated waiting before sowing. Then 210 days to germinate.

55% germination in 210 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Gillenia p. 148Public domain
Show the original text
Gillenia (Rosaceae). G. trifoliata germ. best in 40-70 GA-3(55% in 15 w), less in 70 GA-3(15%), and none in 700, 70L, 4070D, or 40-70L. Seeds placed outdoors in September germ. 55% in April. Seeds DS 6 m at 70 germ. 40(50% in 8-10 w), 70 GA-3(4%), and 70D(none), but these expts. are only 3 m old.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Gillenia p. 148. 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.