Deno’s Garden

Oenothera lavandulifolia

Genus Oenothera

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around October 4, 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

about 6 months from start to sowing. Then 3 days to germinate.

100% germination in 3 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Calylophus p. 110Public domain
Show the original text
Calylophus (Onagraceae). C. lavandulifolius germ. 95% in 3-5 d in either 70L or 70D, 40-70(100% in 3rd d), and 70% in April in outdoor treatment. Seeds treated with GA-3 germ. 92% in 5-7 d at 70, which is slower than untreated seeds.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Calylophus p. 110. 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.

  1. Sow outdoors and leave it

    Up in April.

No stated waiting before sowing.

70% germination.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Calylophus p. 110Public domain
Show the original text
Calylophus (Onagraceae). C. lavandulifolius germ. 95% in 3-5 d in either 70L or 70D, 40-70(100% in 3rd d), and 70% in April in outdoor treatment. Seeds treated with GA-3 germ. 92% in 5-7 d at 70, which is slower than untreated seeds.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Calylophus p. 110. 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.