Euphorbia xanthadenia

A spiny shrubby spurge from the hot, dry south of Madagascar, recorded around Fort-Dauphin and inland to the southwest. Grow it warm and bright, never cold, with a drier winter rest.

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

Recorded in the dry to subhumid thicket and spiny bushland of southern Madagascar, mostly near sea level to about 440 m; details of its microhabitat are inferred from related Malagasy shrubby Euphorbia.

Climate sites run from about 15 to 440 m.

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.