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Linum alpinum

Alpine Flax

Family LinaceaeGenus Linum

Pale blue five-petalled flowers with yellow centers, on wiry stems among dry grass and rock
FlowerUser:TigerenteCC BY-SA 3.0

About the plant

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

Habit
perennialPlants of the World Online
Flower
Pale blueRead from the photograph on this page
Native range
Albania, Austria, Bulgaria, France, Germany, Greece 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; Read from the photograph on this page — Deno's Garden; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

This source reports three treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

Start around March 18, 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 18 days to germinate.

60% germination in 10–18 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Linum p. 54Public domain
Show the original text
Linum (Ltnaceae). L. alpinum germ. 70 GA-3(6/10 in 10-18 d), 70L(1/9 on 10th d), and 40(3/8 in 9-12 w)-70D(2/8 on 2nd d). None germ. in 70D or OT.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Linum p. 54. 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 11, 2027 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 Light: dark

    2/8 germinated in this phase.

Steps after step 1 run on after germination.

Germination happens during step 1, in 84 days.

38% germination in 63–84 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Linum p. 54Public domain
Show the original text
Linum (Ltnaceae). L. alpinum germ. 70 GA-3(6/10 in 10-18 d), 70L(1/9 on 10th d), and 40(3/8 in 9-12 w)-70D(2/8 on 2nd d). None germ. in 70D or OT.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Linum p. 54. 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 High Rated by us, not by the source.

Start around March 26, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 10 days to germinate.

11% germination in 10 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Linum p. 54Public domain
Show the original text
Linum (Ltnaceae). L. alpinum germ. 70 GA-3(6/10 in 10-18 d), 70L(1/9 on 10th d), and 40(3/8 in 9-12 w)-70D(2/8 on 2nd d). None germ. in 70D or OT.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Linum p. 54. 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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