Deno’s Garden

Euphorbia aristata

Genus Euphorbia

This source reports three treatments. All are shown.

Protocol 1

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.

91% germination.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Euphorbia p. 142Public domain
Show the original text
Euphorbia (Euphorbiaceae). E. aristata germ. 91% in April in outdoor treatment. It also germ. 70D(50% in 4- 8 d)-40-70(4%)-40-70(12%) and 40(4%)-70(20% on 4th d).
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 December 28, 2026 for a May 3 last frost.

  1. Warm moist stratification

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

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    4 germinated in this phase.

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  5. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    12 germinated in this phase.

Steps after step 1 run on after germination.

about 3 months from start to sowing. Then 8 days to germinate.

50% germination in 4–8 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. aristata germ. 91% in April in outdoor treatment. It also germ. 70D(50% in 4- 8 d)-40-70(4%)-40-70(12%) and 40(4%)-70(20% on 4th d).
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 3

DerivedN. C. Deno, 1993

Difficulty High Rated by us, not by the source.

Start around October 3, 2026 for a May 3 last frost.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    4 germinated in this phase.

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 6 months from start to sowing. Then 4 days to germinate.

20% germination in 4 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. aristata germ. 91% in April in outdoor treatment. It also germ. 70D(50% in 4- 8 d)-40-70(4%)-40-70(12%) and 40(4%)-70(20% on 4th d).
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.