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Species library › Euphorbia › Euphorbia retrospina
Succulents Little published: much of this is inferred from related species

Euphorbia retrospina

A spiny succulent Euphorbia from southern Madagascar, known from one georeferenced record. Treat it like other southern Malagasy spiny euphorbias: hot, very bright, quick-draining mix, and a drier, cooler rest from May to September.

Euphorbia retrospina
Photo: Michael Wolf (Webseite), CC BY-SA 3.0, via Wikimedia Commons
At home, aim for
Day IntermediateTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Dry airBand in Plantistry
Light Bright, filtered lightDLI and PPFD in Plantistry
Expects a seasonal restGrows in the ground

Where it grows wild

The single record lies in the dry south of Madagascar, where succulent euphorbias grow among rocks and in dry thorn scrub.

Recorded near 330 m in the southern interior; no elevation data on the record.

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.