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Euphorbia characias subsp. wulfenii

Wulfen spurge · Mediterranean spurge

Family EuphorbiaceaeGenus Euphorbia

Also published as Euphorbia wulfenii. You are in the right place.

A rounded clump of upright stems clothed in narrow blue-green leaves, topped by large heads of yellow-green flowers
The whole plantStefan.lefnaerCC BY-SA 4.0

Worth knowing

  • Mediterranean spurge is valued in gardens for surviving drought. Like many euphorbias it has a toxic, sticky white sap, which has been used since ancient times to treat warts and other growths on the skin. Wikipedia: Euphorbia characias

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty Moderate Rated by us, not by the source.

Start around July 8, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on July 7, 2026.

  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 Light: dark

about 9 months from start to sowing. Then 2 days to germinate.

100% germination in 2 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Euphorbia p. 33Public domain
Show the original text
Euphorbia (Euphorbiaceae). ' E. wulfenii germ. 70D-40-70D(3/3 on 2nd d) and none in 70L or. 70 GA-3.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Euphorbia p. 33. 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, 1998

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing.

0% germination.

Nothing germinated at 70.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Euphorbia p. 33Public domain
Show the original text
Euphorbia (Euphorbiaceae). ' E. wulfenii germ. 70D-40-70D(3/3 on 2nd d) and none in 70L or. 70 GA-3.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Euphorbia p. 33. Quoted exactly. Every value on this card comes from this record; the step names come from a fixed list.

How each step is done, in Deno’s words, and what Verified and Derived mean.

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