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Silene latifolia

Bladder Campion · White Campion · White Cockle

Family CaryophyllaceaeGenus Silene

A white flower with five deeply notched petals around a small yellow-green center, seen close against a pale background.
FlowerDidier DescouensCC BY-SA 4.0

About the plant

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

Habit
annual or perennialPlants of the World Online
Flower
WhiteFlora of North America
Native range
Albania, Algeria, Altay, Amur, Austria, Baltic States 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 North America — Flora of North America Editorial Committee; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

  • Its sex is set by X and Y chromosomes: XX plants are female and XY male. Its Y chromosome is larger than the X. Wikipedia: Silene latifolia

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 March 27, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 9 days to germinate.

100% germination in 4–9 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Lychnis p. 55Public domain
Show the original text
Lychnis (Caryophyllaceae). L. alba germ. 70L(100% in 4-9 d) and 70D(1-10%) (2nd Ed.). This was unchanged after 2 y DS.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Lychnis p. 55. 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 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.

1% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Lychnis p. 55Public domain
Show the original text
Lychnis (Caryophyllaceae). L. alba germ. 70L(100% in 4-9 d) and 70D(1-10%) (2nd Ed.). This was unchanged after 2 y DS.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Lychnis p. 55. 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 Low Rated by us, not by the source.

Start around March 29, 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 7 days to germinate.

100% germination in 3–7 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Lychnis p. 174Public domain
Show the original text
Lychnis (Caryophyllaceae). L. alba germ. 70L(100% in 4-9 d), 70D GA-3(100% in 3-7 d), and 70D(1-10%) using fresh seed or seed DS 6 m at 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Lychnis p. 174. 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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