Deno’s Garden

Lonicera maackii

Genus Lonicera

This source reports three treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Low Rated by us, not by the source.

Start around January 25, 2027 for a May 3 last frost.

  1. Clean the flesh off the seed

  2. Leach in running water

    Duration: 7 days

    Washed and cleaned daily for 7 days.

  3. Cold moist stratification

    Temperature: 40°F 4°C

7 days from start to sowing. Then 63 days to germinate.

90% germination in 14–63 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Lonicera p. 173Public domain
Show the original text
Lonicera (Caprifoliaceae). All seeds are in berries and were WC for 7 d. Treatment with GA-3 was tried on L. maacki germ. 40(90-95% in 2-9 w) using either fresh seed or seed DS 6 m at 70 or 40. Germination was more extended when sown at 70 as shown by 70(65%)- 40(35%) for DS seed and 70(3%)-40(31%) for fresh seed.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Lonicera p. 173. 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. Clean the flesh off the seed

  2. Leach in running water

    Duration: 7 days

    Washed and cleaned daily for 7 days.

  3. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  4. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  5. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    35 germinated in this phase.

Steps after step 4 run on after germination.

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

65% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Lonicera p. 173Public domain
Show the original text
Lonicera (Caprifoliaceae). All seeds are in berries and were WC for 7 d. Treatment with GA-3 was tried on L. maacki germ. 40(90-95% in 2-9 w) using either fresh seed or seed DS 6 m at 70 or 40. Germination was more extended when sown at 70 as shown by 70(65%)- 40(35%) for DS seed and 70(3%)-40(31%) for fresh seed.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Lonicera p. 173. 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 September 10, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 9, 2026.

  1. Clean the flesh off the seed

  2. Leach in running water

    Duration: 7 days

    Washed and cleaned daily for 7 days.

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    3 germinated in this phase.

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

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

31% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Lonicera p. 173Public domain
Show the original text
Lonicera (Caprifoliaceae). All seeds are in berries and were WC for 7 d. Treatment with GA-3 was tried on L. maacki germ. 40(90-95% in 2-9 w) using either fresh seed or seed DS 6 m at 70 or 40. Germination was more extended when sown at 70 as shown by 70(65%)- 40(35%) for DS seed and 70(3%)-40(31%) for fresh seed.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Lonicera p. 173. 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.