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

Euphorbia iharanae

A small spiny Euphorbia from the Iharana (Vohémar) area of northeastern Madagascar, in the same broad group as Euphorbia milii. Very little is published on it; grow it warm all year, bright but not scorched, in a fast-draining mix kept lightly moist in growth.

Euphorbia iharanae
Photo: Frank Vincentz, CC BY-SA 3.0, via Wikimedia Commons
At home, aim for
Day Warm-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Ordinary room humidityBand in Plantistry
Light Bright, filtered lightDLI and PPFD in Plantistry
No rest periodGrows in the ground

Where it grows wild

Known from very few records near Vohémar on the northeastern coast. Related Malagasy spiny euphorbias grow on rocky outcrops and in dry to semi-humid scrub with bright light and some shelter. Habitat details for this species were not found.

The single record is near sea level; no specimen elevation is recorded.

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.