Deno’s Garden

Viburnum setigerum

Genus Viburnum

This source reports 4 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty Moderate Rated by us, not by the source.

Start around July 16, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on July 15, 2026.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 6 months from start to sowing. Then 84 days to germinate.

100% germination in 84 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Viburnum p. 67Public domain
Show the original text
Viburnum (Caprifoliaceae). V. setigerum germination is now found to be speeded up by GA-3 although germination is in a second cycle at 40. Seéds germ. 70 (GA-3)-40(100% in 12th w), 70D-40-70D-40(40% in 8-12 w)-70D-40(40% in 3-12 w), and 40-70D-40-70D-40(50% in 4-8 w)-70D(10% in 1-12 w)-40(10% in 3-7 w). OT germ: 75% in Sept.-Oct. one year after being set outside in spring. Seeds DS 1 y germ. 70 GA-3(4/12 in 9th w) and 70D{none), and seeds DS 2 y were dead.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Viburnum p. 67. 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, 1998

Difficulty High Rated by us, not by the source.

Start around November 16, 2026 for a May 3 last frost. Too late for spring 2027 — that needed starting on November 15, 2025.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

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

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  4. Warm moist stratification

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

  5. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  6. Warm moist stratification

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

    10 germinated in this phase.

  7. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    10 germinated in this phase.

Steps after step 5 run on after germination.

about 15 months from start to sowing. Then 56 days to germinate.

50% germination in 28–56 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Viburnum p. 67Public domain
Show the original text
Viburnum (Caprifoliaceae). V. setigerum germination is now found to be speeded up by GA-3 although germination is in a second cycle at 40. Seéds germ. 70 (GA-3)-40(100% in 12th w), 70D-40-70D-40(40% in 8-12 w)-70D-40(40% in 3-12 w), and 40-70D-40-70D-40(50% in 4-8 w)-70D(10% in 1-12 w)-40(10% in 3-7 w). OT germ: 75% in Sept.-Oct. one year after being set outside in spring. Seeds DS 1 y germ. 70 GA-3(4/12 in 9th w) and 70D{none), and seeds DS 2 y were dead.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Viburnum p. 67. 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, 1998

Difficulty High Rated by us, not by the source.

Start around January 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on January 16, 2026.

  1. Warm moist stratification

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

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

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

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  5. Warm moist stratification

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

  6. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    40 germinated in this phase.

Steps after step 4 run on after germination.

about 12 months from start to sowing. Then 84 days to germinate.

40% germination in 56–84 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Viburnum p. 67Public domain
Show the original text
Viburnum (Caprifoliaceae). V. setigerum germination is now found to be speeded up by GA-3 although germination is in a second cycle at 40. Seéds germ. 70 (GA-3)-40(100% in 12th w), 70D-40-70D-40(40% in 8-12 w)-70D-40(40% in 3-12 w), and 40-70D-40-70D-40(50% in 4-8 w)-70D(10% in 1-12 w)-40(10% in 3-7 w). OT germ: 75% in Sept.-Oct. one year after being set outside in spring. Seeds DS 1 y germ. 70 GA-3(4/12 in 9th w) and 70D{none), and seeds DS 2 y were dead.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Viburnum p. 67. 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, 1998

Difficulty Moderate Rated by us, not by the source.

Start around February 2, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on February 1, 2026.

  1. Dry storage

    Duration: 365 daysTemperature: 70°F 21°C

  2. Gibberellic acid soak

  3. Sow and cover

    Temperature: 70°F 21°C

about 12 months from start to sowing. Then 63 days to germinate.

33% germination in 63 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Viburnum p. 67Public domain
Show the original text
Viburnum (Caprifoliaceae). V. setigerum germination is now found to be speeded up by GA-3 although germination is in a second cycle at 40. Seéds germ. 70 (GA-3)-40(100% in 12th w), 70D-40-70D-40(40% in 8-12 w)-70D-40(40% in 3-12 w), and 40-70D-40-70D-40(50% in 4-8 w)-70D(10% in 1-12 w)-40(10% in 3-7 w). OT germ: 75% in Sept.-Oct. one year after being set outside in spring. Seeds DS 1 y germ. 70 GA-3(4/12 in 9th w) and 70D{none), and seeds DS 2 y were dead.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Viburnum p. 67. 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.