Deno’s Garden

Oenothera lindheimeri

Genus Oenothera

This source reports three treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Low 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.

100% germination in 8–12 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Gaura p. 145Public domain
Show the original text
Gaura (Onagraceae). G. lindheimeri germ. 70D(100% in 8-12 d), 40-70(100%) and 100% in April in outdoor treatment. Light had no effect. There were 80% empty seed coats.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Gaura p. 145. 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 Moderate Rated by us, not by the source.

Start around September 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C Light: either

  2. Warm moist stratification

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

about 6 months from start to sowing. Germination time not stated; 21 days assumed.

100% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Gaura p. 145Public domain
Show the original text
Gaura (Onagraceae). G. lindheimeri germ. 70D(100% in 8-12 d), 40-70(100%) and 100% in April in outdoor treatment. Light had no effect. There were 80% empty seed coats.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Gaura p. 145. 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 Low Rated by us, not by the source.

  1. Sow outdoors and leave it

    Up in April.

No stated waiting before sowing.

100% germination.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Gaura p. 145Public domain
Show the original text
Gaura (Onagraceae). G. lindheimeri germ. 70D(100% in 8-12 d), 40-70(100%) and 100% in April in outdoor treatment. Light had no effect. There were 80% empty seed coats.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Gaura p. 145. 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.