Deno’s Garden

Asphodelus fistulosus

Genus Asphodelus

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

Protocol 1

DerivedN. C. Deno, 1998

Difficulty Low 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.

75% germination.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Glyphosperma p. 36Public domain
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Glyphosperma (Liliaceae). G. palmeri data is now complete. Seeds germ. 70D(3/4 on 11 th d) and 70L(none). When the sample in 70L was shifted to 70D after 9 w, 1/3 germ. in 5th d.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Glyphosperma p. 36. 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, 1998

Difficulty Moderate Rated by us, not by the source.

Start around March 24, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 12 days to germinate.

33% germination in 4–12 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Asphodelus p. 16Public domain
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Asphodelus (Liliaceae). A. fistulosus germ. 70D(4/12 in 4-12 d) and 40-70D(2/20 in 4-7 w).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Asphodelus p. 16. 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, 1998

Difficulty High Rated by us, not by the source.

Start around August 20, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on August 19, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

about 6 months from start to sowing. Then 49 days to germinate.

10% germination in 28–49 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Asphodelus p. 16Public domain
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Asphodelus (Liliaceae). A. fistulosus germ. 70D(4/12 in 4-12 d) and 40-70D(2/20 in 4-7 w).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Asphodelus p. 16. 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 Very high 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.

7% germination in 77 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Asphodelus p. 104Public domain
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Asphodelus (Llliaceae). A. fistulosus germ. 40(1/14 in 11th w) and 70(all rotted). Astelboides (see Rodgersia).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Asphodelus p. 104. 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.