Deno’s Garden

Euphorbia epithymoides

Genus Euphorbia

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 September 10, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 9, 2026.

  1. Dry storage

    Duration: 180 daysTemperature: 40°F 4°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: either

about 6 months from start to sowing. Then 28 days to germinate.

40% germination in 14–28 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Euphorbia p. 142Public domain
Show the original text
Euphorbia (Euphorbiaceae). E. polychroma seeds are enclosed in a hard case which is not readily removed until the seeds have been moist for a few days. Germination was 70(40% in 2-4 w) with seed DS 6 m at 40, 70(20% in 1-4 w) with seed DS 6 m at 70, and 70-40- 70(none) with fresh seed. The DS promotes germination. All seed started at 40 failed to germinate through four cycles, and outdoor treatment germ. only 5% in March and April. Light had no effect.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Euphorbia p. 142. 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 High Rated by us, not by the source.

Start around September 10, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 9, 2026.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: either

about 6 months from start to sowing. Then 28 days to germinate.

20% germination in 7–28 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Euphorbia p. 142Public domain
Show the original text
Euphorbia (Euphorbiaceae). E. polychroma seeds are enclosed in a hard case which is not readily removed until the seeds have been moist for a few days. Germination was 70(40% in 2-4 w) with seed DS 6 m at 40, 70(20% in 1-4 w) with seed DS 6 m at 70, and 70-40- 70(none) with fresh seed. The DS promotes germination. All seed started at 40 failed to germinate through four cycles, and outdoor treatment germ. only 5% in March and April. Light had no effect.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Euphorbia p. 142. 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.