Euphorbia alluaudii

A leafless, pencil-stemmed shrub Euphorbia of southern Madagascar's spiny forest. The cultivated subspecies oncoclada has the familiar segmented, sausage-like stems. It wants heat, strong sun and a free-draining mix, and it does not tolerate cold, wet roots.

At home, aim for

Day IntermediateTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Dry airBand in Plantistry

Light Full sunDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

Dry deciduous and spiny thicket on sand and limestone in the south and southwest, as a shrub or small tree in open scrub. This is general knowledge of the species and is consistent with the record sites.

Mostly lowland: records span 0 to 1700 m, median 400 m. Higher records are likely the subspecies oncoclada or plants in cultivation.

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.