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Viburnum sargentii

Asian Guelder Rose

Family ViburnaceaeGenus Viburnum

A many-stemmed shrub of three-lobed leaves with small green fruit clusters, standing on bare soil at the edge of woodland.
The whole plantMagnus ManskeCC BY-SA 2.5

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
12-15 ft3.7-4.6 mExtension Gardener Plant Toolbox
Spread
12-15 ft3.7-4.6 mExtension Gardener Plant Toolbox
Flower
Cream/Tan, WhiteExtension Gardener Plant Toolbox
Blooms
Spring, SummerExtension Gardener Plant Toolbox
Native range
Amur, China North-Central, China South-Central, China Southeast, Chita, Inner Mongolia and elsewhereGBIF Backbone Taxonomy
Hardiness zones
3-7Extension 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), Alkaline (>8.0), Neutral (6.0-8.0)Extension Gardener Plant Toolbox
Moisture
Good DrainageExtension 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.

Worth knowing

  • Viburnum sargentii carries flat white flower heads like those of lacecap hydrangeas: sterile, saucer-shaped outer florets round fertile tubular ones in the center. Its maple-like leaves often turn red in autumn. Wikipedia: Viburnum sargentii

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

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Low Rated by us, not by the source.

Start around January 5, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on January 4, 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: 365 daysTemperature: 70°F 21°C

  4. Sow and cover

    Temperature: 70°F 21°C

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

92% germination in 56–84 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Viburnum p. 85Public domain
Show the original text
Viburnum (Caprifoliaceae). All seeds were WC for 7 d first. V. sargenti germ. 70(92% in 8-12 w) (2nd Ed.) with no change after 1 y DS.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Viburnum p. 85. 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 Low Rated by us, not by the source.

Start around January 11, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 84 days to germinate.

92% germination in 56–84 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Viburnum p. 228Public domain
Show the original text
Viburnum (Caprlfollaceae). Viburnums divide into two groups. The first group germ. in a 40-70 pattern. The cotyledons develop within a week or two after germination. This group is adapted to germination in spring and immediate leaf development and growth. The second group germ. in a 40-70-40 pattern with extension into a 40-70-40-70-40 pattern. Germination takes place in a cycle at 40. The seedlings must be kept at 40 for two to three months after radicle development is complete in order for the cotyledons to develop properly on shifting to 70. Puncturing. the seed coat had no effect in three species. All seed was WC for 1-2 w. Germination was stimulated by GA-3 in V. sargenti germ: 70(92% in 8-12 w) and 40-70(90%). The seedlings develop a root system at 70. The cotyledons will not develop until after 3 m at 40 and a return to 70. . .
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Viburnum p. 228. 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 December 15, 2026 for a May 3 last frost.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 3 months from start to step 2. Germination happens during step 2; time not stated, 21 days assumed.

90% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Viburnum p. 228Public domain
Show the original text
Viburnum (Caprlfollaceae). Viburnums divide into two groups. The first group germ. in a 40-70 pattern. The cotyledons develop within a week or two after germination. This group is adapted to germination in spring and immediate leaf development and growth. The second group germ. in a 40-70-40 pattern with extension into a 40-70-40-70-40 pattern. Germination takes place in a cycle at 40. The seedlings must be kept at 40 for two to three months after radicle development is complete in order for the cotyledons to develop properly on shifting to 70. Puncturing. the seed coat had no effect in three species. All seed was WC for 1-2 w. Germination was stimulated by GA-3 in V. sargenti germ: 70(92% in 8-12 w) and 40-70(90%). The seedlings develop a root system at 70. The cotyledons will not develop until after 3 m at 40 and a return to 70. . .
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Viburnum p. 228. 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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