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Species library › Euphorbia › Euphorbia alcicornis
Succulents Partly documented

Euphorbia alcicornis

A Madagascan succulent Euphorbia of rocky places, mostly from the central highlands near 1,500 m, where summers are warm and wet and winters cool and dry. Grow it hard and bright with a cool, drier winter rest.

Euphorbia alcicornis
Photo: Frank Vincentz, CC BY-SA 3.0, via Wikimedia Commons
At home, aim for
Day IntermediateTargets in Plantistry
Night A clear drop at nightTargets in Plantistry
Humidity Dry airBand in Plantistry
Light Full sunDLI and PPFD in Plantistry
Expects a seasonal restGrows on rock (lithophyte)

Where it grows wild

Rocky areas in the central highlands of Madagascar, among outcrops in open vegetation. Little else is published; conditions here are built from the measured climate and what suits highland Madagascan succulent Euphorbia.

Recorded at 200–1,692 m, median 1,539 m; most records are highland.

Madagascar

🔒 Growing it like that

The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:

✓ Day and night temperature targets, and the limits it tolerates
✓ Humidity band, and how to hold it
✓ Light as DLI and PPFD for a grow light
✓ Wet and dry seasons, and whether to rest it
✓ Substrate and airflow
✓ A step-by-step setup to grow it like the wild

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Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app. Photo from Wikimedia Commons, used under its CC BY-SA 3.0 licence, unmodified.