Deno’s Garden

Linanthus watsonii

Genus Linanthus

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

Start around March 22, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 14 days to germinate.

50% germination in 14 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Leptodactylon p. 52Public domain
Show the original text
Leptodactylon (Polemoniaceae). L. watsonii germ. 70D(4/8 in 2nd w) and 40(4/10 in 8-10 w)-70D(4/10 on 2nd d).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Leptodactylon p. 52. 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 October 27, 2026 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

    4/10 germinated in this phase.

Steps after step 1 run on after germination.

about 3 months from start to sowing. Then 70 days to germinate.

40% germination in 56–70 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Leptodactylon p. 52Public domain
Show the original text
Leptodactylon (Polemoniaceae). L. watsonii germ. 70D(4/8 in 2nd w) and 40(4/10 in 8-10 w)-70D(4/10 on 2nd d).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Leptodactylon p. 52. 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.