Deno’s Garden

Daphne mezereum

Genus Daphne

This source reports 6 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

Start around July 23, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on July 22, 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 77 days to germinate.

100% germination in 42–77 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Daphne p. 36Public domain
Show the original text
Daphne (Thymelaceae). D. mezereum and its alba form gave somewhat different germination patterns. The seedlings from GA-3 treatment developed a stem and leaves a few weeks after germination, but the seedlings from a 40-70 pattern were slower to develop a stem and leaves and some had to go through 3 m at 40 before such development occurred. The 40-70 and 40-70-40-70 treatments were best. D. mezereum germ. 40-70(26%)-40-70(74% in 1-6 w), 70 GA-3(60% in 5-10 w), and 70D(15%)-40(8%)-70(15%). D. mezereum alba germ. 40-70(100% in 6-11 w), 70 GA-3(55% in 3-5 w), and 70D(10%).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Daphne p. 36. 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, 1996

Difficulty Moderate Rated by us, not by the source.

Start around February 28, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on February 27, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    26 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 12 months from start to sowing. Then 42 days to germinate.

74% germination in 7–42 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Daphne p. 36Public domain
Show the original text
Daphne (Thymelaceae). D. mezereum and its alba form gave somewhat different germination patterns. The seedlings from GA-3 treatment developed a stem and leaves a few weeks after germination, but the seedlings from a 40-70 pattern were slower to develop a stem and leaves and some had to go through 3 m at 40 before such development occurred. The 40-70 and 40-70-40-70 treatments were best. D. mezereum germ. 40-70(26%)-40-70(74% in 1-6 w), 70 GA-3(60% in 5-10 w), and 70D(15%)-40(8%)-70(15%). D. mezereum alba germ. 40-70(100% in 6-11 w), 70 GA-3(55% in 3-5 w), and 70D(10%).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Daphne p. 36. 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 Moderate Rated by us, not by the source.

Start around January 25, 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. Then 70 days to germinate.

60% germination in 35–70 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Daphne p. 36Public domain
Show the original text
Daphne (Thymelaceae). D. mezereum and its alba form gave somewhat different germination patterns. The seedlings from GA-3 treatment developed a stem and leaves a few weeks after germination, but the seedlings from a 40-70 pattern were slower to develop a stem and leaves and some had to go through 3 m at 40 before such development occurred. The 40-70 and 40-70-40-70 treatments were best. D. mezereum germ. 40-70(26%)-40-70(74% in 1-6 w), 70 GA-3(60% in 5-10 w), and 70D(15%)-40(8%)-70(15%). D. mezereum alba germ. 40-70(100% in 6-11 w), 70 GA-3(55% in 3-5 w), and 70D(10%).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Daphne p. 36. 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 Moderate Rated by us, not by the source.

Start around March 1, 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. Then 35 days to germinate.

55% germination in 21–35 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Daphne p. 36Public domain
Show the original text
Daphne (Thymelaceae). D. mezereum and its alba form gave somewhat different germination patterns. The seedlings from GA-3 treatment developed a stem and leaves a few weeks after germination, but the seedlings from a 40-70 pattern were slower to develop a stem and leaves and some had to go through 3 m at 40 before such development occurred. The 40-70 and 40-70-40-70 treatments were best. D. mezereum germ. 40-70(26%)-40-70(74% in 1-6 w), 70 GA-3(60% in 5-10 w), and 70D(15%)-40(8%)-70(15%). D. mezereum alba germ. 40-70(100% in 6-11 w), 70 GA-3(55% in 3-5 w), and 70D(10%).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Daphne p. 36. 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, 1996

Difficulty High Rated by us, not by the source.

Start around December 15, 2026 for a May 3 last frost.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    8 germinated in this phase.

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    15 germinated in this phase.

Steps after step 1 run on after germination.

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

15% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Daphne p. 36Public domain
Show the original text
Daphne (Thymelaceae). D. mezereum and its alba form gave somewhat different germination patterns. The seedlings from GA-3 treatment developed a stem and leaves a few weeks after germination, but the seedlings from a 40-70 pattern were slower to develop a stem and leaves and some had to go through 3 m at 40 before such development occurred. The 40-70 and 40-70-40-70 treatments were best. D. mezereum germ. 40-70(26%)-40-70(74% in 1-6 w), 70 GA-3(60% in 5-10 w), and 70D(15%)-40(8%)-70(15%). D. mezereum alba germ. 40-70(100% in 6-11 w), 70 GA-3(55% in 3-5 w), and 70D(10%).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Daphne p. 36. 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, 1996

Difficulty High Rated by us, not by the source.

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

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

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

10% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Daphne p. 36Public domain
Show the original text
Daphne (Thymelaceae). D. mezereum and its alba form gave somewhat different germination patterns. The seedlings from GA-3 treatment developed a stem and leaves a few weeks after germination, but the seedlings from a 40-70 pattern were slower to develop a stem and leaves and some had to go through 3 m at 40 before such development occurred. The 40-70 and 40-70-40-70 treatments were best. D. mezereum germ. 40-70(26%)-40-70(74% in 1-6 w), 70 GA-3(60% in 5-10 w), and 70D(15%)-40(8%)-70(15%). D. mezereum alba germ. 40-70(100% in 6-11 w), 70 GA-3(55% in 3-5 w), and 70D(10%).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Daphne p. 36. 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.