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Viburnum setigerum

Tea Viburnum · Tea-leaf Viburnum

Family ViburnaceaeGenus Viburnum

Rounded heads of small white flowers on near-black twigs, above long ribbed leaves edged in bronze.
FlowerAgnieszka Kwiecień, NovaCC BY-SA 4.0

About the plant

What it is and where it grows — not part of any germination protocol.

The plant

Habit
ShrubExtension Gardener Plant Toolbox
Habit
shrubPlants of the World Online
Height
8-12 ft2.4-3.7 mExtension Gardener Plant Toolbox
Spread
6-8 ft1.8-2.4 mExtension Gardener Plant Toolbox
Flower
Gold/Yellow, WhiteExtension Gardener Plant Toolbox
Blooms
SpringExtension Gardener Plant Toolbox
Native range
China North-Central, China South-Central, China Southeast, TaiwanGBIF Backbone Taxonomy
Hardiness zones
5-7Extension Gardener Plant Toolbox

Growing conditions

Sun
Full sun; Partial ShadeExtension Gardener Plant Toolbox
Soil
Clay, Loam (Silt), SandExtension Gardener Plant Toolbox
Soil pH
Acid (<6.0), Neutral (6.0-8.0)Extension Gardener Plant Toolbox
Moisture
Good Drainage, Occasionally WetExtension Gardener Plant Toolbox

Toxicity is noted only where a source states it. No note here is not a finding of safety.

Sources: Extension Gardener Plant Toolbox — NC State Extension; Plants of the World Online — Royal Botanic Gardens, Kew; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

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 October 14, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on October 13, 2026.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 3 months from start to step 2. Germination happens during step 2, in 84 days.

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 February 14, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on February 13, 2026.

  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 12 months from start to step 5. Germination happens during step 5, in 56 days.

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 April 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on April 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 9 months from start to step 4. Germination happens during step 4, in 84 days.

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.

How each step is done, in Deno’s words, and what Verified and Derived mean.

Germination trials

Readers’ own records of sowing this species, published after review. Share your trial · All trials

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