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Weigela florida

Old Fashioned Weigela · Old-fashion Weigela · Weigela · Oldfashioned Weigela

Family CaprifoliaceaeGenus Weigela

Pink trumpet flowers and buds among veined green leaves
FlowerEmőke DénesCC BY-SA 4.0

About the plant

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

The plant

Habit
Deciduous shrubPlant Finder
Habit
shrubPlants of the World Online
Height
6-10 ft1.8-3 mPlant Finder
Spread
9-12 ft2.7-3.7 mPlant Finder
Flower
Showy; rose pinkPlant Finder
Blooms
April to JunePlant Finder
Native range
Northern China, Korea, JapanPlant Finder
Hardiness zones
4-8Plant Finder

Growing conditions

Sun
Full sunPlant Finder
Soil
Average, medium moisture, well-drained; tolerates clayPlant Finder
Soil pH
Acid (<6.0), Alkaline (>8.0), Neutral (6.0-8.0)Extension Gardener Plant Toolbox
Moisture
Good Drainage, MoistExtension Gardener Plant Toolbox
Watering
MediumPlant Finder

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

Sources: Plant Finder — Missouri Botanical Garden; Plants of the World Online — Royal Botanic Gardens, Kew; Extension Gardener Plant Toolbox — NC State Extension.

Worth knowing

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 March 22, 2027 for a May 3 last frost.

  1. Gibberellic acid soak

  2. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 14 days to germinate.

95% germination in 5–14 days.

GA-3 beats the light: 95% against 82%, and buried.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, WeigelaPublic domain
Show the original text
Welgelia (Caprifoliaceae). W. florida required light or GA-3. Seeds germ. 70L(82% in 5-18 d), 70D GA-3(95% in 5-14 d), and 70D(3%).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Weigela. 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 March 18, 2027 for a May 3 last frost.

  1. Sow on the surface — do not cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 18 days to germinate.

82% germination in 5–18 days.

82% on the surface in light, with no chemistry needed.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, WeigelaPublic domain
Show the original text
Welgelia (Caprifoliaceae). W. florida required light or GA-3. Seeds germ. 70L(82% in 5-18 d), 70D GA-3(95% in 5-14 d), and 70D(3%).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Weigela. 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 Very 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.

3% germination.

3%. Deno's own summary: it required light or GA-3.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, WeigelaPublic domain
Show the original text
Welgelia (Caprifoliaceae). W. florida required light or GA-3. Seeds germ. 70L(82% in 5-18 d), 70D GA-3(95% in 5-14 d), and 70D(3%).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Weigela. 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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