Euphorbia gregaria

A leafless shrubby succulent Euphorbia with pencil-thin grey-green stems. It forms colonies on the arid gravel plains and in the washes of southern Namibia and the Northern Cape. It needs full sun, very sharp drainage, and a dry, cool winter.

At home, aim for

Day IntermediateTargets in Plantistry

Night A clear drop at nightTargets 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

Open desert and semi-desert: gravel flats, rocky slopes and dry riverbeds, often in large stands, which gives it its name.

Records from 227 to 725 m, median about 640 m.

NamibiaNorthern Cape

🔒 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 2.0 licence, unmodified.