Pachypodium stenanthum

A little-documented Pachypodium known only from a handful of records around the Anosy region of far south-eastern Madagascar, near sea level. Grow it like other southern Malagasy pachypodiums: strong sun, warm days, a fast-draining mineral mix and a drier, cooler winter.

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

Records sit in the lowlands of the Anosy region, where humid coastal forest gives way to dry spiny bush on rocky ground. Southern pachypodiums typically grow on rock outcrops or sandy soil in open scrub, which is the likely niche here.

The measured sites lie at roughly 150 to 220 m; few records carry an elevation.

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 4.0 licence, unmodified.