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Flower Pictured: Braya glabella , a relative Eric Lamb CC BY 4.0 Illustration Kaspar Maria von Sternberg (1761–1838), David Heinrich Hoppe (1760–1846) Public domain About the plant What it is and where it grows — not part of any germination protocol.
Habit perennial Plants of the World Online
Flower White, pale lilac Read from the photograph on this page
Native range Austria, Italy GBIF 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.
This source reports 4 treatments. All are shown.
Protocol 1 N. C. Deno, 1996 Difficulty Low Rated by us, not by the source.
Start around March 31, 2027 for a May 3 last frost.
1 Sow and cover
Temperature: 70°F 21°C · Light: light
No stated waiting before sowing. Then 5 days to germinate.
100% germination in 5 days.
Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Braya p. 26Public domain Show the original text Braya (Brassicaceae). B. alpina germ. 70L(100% on 5th d), 70D(80% in 5-17 d), 40(68% in 2-8 w)-70D(24% in 3-7 d), and OT(100% in March started in Feb.). Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Braya p. 26. 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 N. C. Deno, 1996 Difficulty Low Rated by us, not by the source.
Sow around February 2027 — a date the source gives, not one counted back from a May 3 last frost.
1 Sow outdoors and leave it
Sown outdoors in February; up in March.
No stated waiting before sowing. Then 30 days to germinate.
100% germination in 30 days.
Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Braya p. 26Public domain Show the original text Braya (Brassicaceae). B. alpina germ. 70L(100% on 5th d), 70D(80% in 5-17 d), 40(68% in 2-8 w)-70D(24% in 3-7 d), and OT(100% in March started in Feb.). Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Braya p. 26. 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 N. C. Deno, 1996 Difficulty Low Rated by us, not by the source.
Start around March 19, 2027 for a May 3 last frost.
1 Sow and cover
Temperature: 70°F 21°C · Light: dark
No stated waiting before sowing. Then 17 days to germinate.
80% germination in 5–17 days.
Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Braya p. 26Public domain Show the original text Braya (Brassicaceae). B. alpina germ. 70L(100% on 5th d), 70D(80% in 5-17 d), 40(68% in 2-8 w)-70D(24% in 3-7 d), and OT(100% in March started in Feb.). Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Braya p. 26. 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 N. C. Deno, 1996 Difficulty Moderate Rated by us, not by the source.
Start around February 8, 2027 for a May 3 last frost.
1 Cold moist stratification
Duration: 90 days · Temperature: 40°F 4°C
2 Warm moist stratification
Duration: 90 days · Temperature: 70°F 21°C · Light: dark
24 germinated in this phase.
Steps after step 1 run on after germination.
Germination happens during step 1, in 56 days.
68% germination in 14–56 days.
Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Braya p. 26Public domain Show the original text Braya (Brassicaceae). B. alpina germ. 70L(100% on 5th d), 70D(80% in 5-17 d), 40(68% in 2-8 w)-70D(24% in 3-7 d), and OT(100% in March started in Feb.). Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Braya p. 26. 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.
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