Deno’s Garden

Ornithogalum pyrenaicum

Genus Ornithogalum

Two sources report 4 treatments between them. All are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Low Rated by us, not by the source.

Start around July 23, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on July 22, 2026.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Temperature: 40°F 4°C

about 6 months from start to sowing. Then 77 days to germinate.

89% germination in 35–77 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Ornithogalum p. 62Public domain
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Ornithogalum (Liliaceae). O. pyrenaicum, the original sample had been DS 6 m and germ. best in 40(89% in 5-11 w). Seeds DS 2 y were dead.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Ornithogalum p. 62. 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 January 18, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

No stated waiting before sowing. Then 77 days to germinate.

89% germination in 35–77 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Ornithogalum p. 183Public domain
Show the original text
Ornithogalum (Liliaceae). James Forrest reported that 0. pyrenaicum germ. 40(89% in 5-11 w), 70-40(90% in 5-11 w), and 15% in April from seed placed outdoors March 1. Treatment with GA-3 increased rotting.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Ornithogalum p. 183. 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 High Rated by us, not by the source.

Sow around March 1, 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 March 1; up in April.

No stated waiting before sowing. Then 30 days to germinate.

15% germination in 30 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Ornithogalum p. 183Public domain
Show the original text
Ornithogalum (Liliaceae). James Forrest reported that 0. pyrenaicum germ. 40(89% in 5-11 w), 70-40(90% in 5-11 w), and 15% in April from seed placed outdoors March 1. Treatment with GA-3 increased rotting.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Ornithogalum p. 183. 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, 1993

Difficulty Moderate Rated by us, not by the source.

Start around July 23, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on July 22, 2026.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 6 months from start to sowing. Then 77 days to germinate.

90% germination in 35–77 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Ornithogalum p. 183Public domain
Show the original text
Ornithogalum (Liliaceae). James Forrest reported that 0. pyrenaicum germ. 40(89% in 5-11 w), 70-40(90% in 5-11 w), and 15% in April from seed placed outdoors March 1. Treatment with GA-3 increased rotting.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Ornithogalum p. 183. 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.