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Barnardia japonica

East Asian Squill

Family AsparagaceaeGenus Barnardia

A slender spike of small pink star flowers opening from the base upward, the spent ones dried below
FlowerC T JohanssonCC BY 3.0

About the plant

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

Habit
bulbous geophytePlants of the World Online
Flower
Rose purple, pink, whiteFlora of China
Native range
China South-Central, China Southeast, Inner Mongolia, Japan, Korea, Manchuria and elsewhereGBIF Backbone Taxonomy

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

Sources: Plants of the World Online — Royal Botanic Gardens, Kew; Flora of China — Wu Zhengyi, Peter H. Raven and Hong Deyuan (eds.); GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

Two sources report 6 treatments between them. All are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Low Rated by us, not by the source.

Start around February 22, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 42 days to germinate.

90% germination in 21–42 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Scilla p. 76Public domain
Show the original text
Scilla (Liliaceae). S. chinensis germ. 70D(60% in 4-9 w), 70L(90% in 3-6 w), 70 GA-3(50% in 2-6 w), and 40(15%)-70(85% on 2nd d).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Scilla p. 76. 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 January 3, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    15 germinated in this phase.

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

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

85% germination in 2 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Scilla p. 76Public domain
Show the original text
Scilla (Liliaceae). S. chinensis germ. 70D(60% in 4-9 w), 70L(90% in 3-6 w), 70 GA-3(50% in 2-6 w), and 40(15%)-70(85% on 2nd d).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Scilla p. 76. 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 February 1, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 63 days to germinate.

60% germination in 28–63 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Scilla p. 76Public domain
Show the original text
Scilla (Liliaceae). S. chinensis germ. 70D(60% in 4-9 w), 70L(90% in 3-6 w), 70 GA-3(50% in 2-6 w), and 40(15%)-70(85% on 2nd d).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Scilla p. 76. 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 February 22, 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 42 days to germinate.

50% germination in 14–42 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Scilla p. 76Public domain
Show the original text
Scilla (Liliaceae). S. chinensis germ. 70D(60% in 4-9 w), 70L(90% in 3-6 w), 70 GA-3(50% in 2-6 w), and 40(15%)-70(85% on 2nd d).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Scilla p. 76. 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, 1993

Difficulty Low Rated by us, not by the source.

Start around March 28, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 8 days to germinate.

99% germination in 4–8 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Scilla p. 212Public domain
Show the original text
Scilla (Liliaceae). S. scilloides germ. 70(99% in 4-8 d) and 40(86% in 6-8 w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Scilla p. 212. 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, 1993

Difficulty Low Rated by us, not by the source.

Start around February 8, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

Germination happens during step 1, in 56 days.

86% germination in 42–56 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Scilla p. 212Public domain
Show the original text
Scilla (Liliaceae). S. scilloides germ. 70(99% in 4-8 d) and 40(86% in 6-8 w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Scilla p. 212. 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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