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Species library › Encephalartos › Encephalartos arenarius
Other Little published: much of this is inferred from related species

Encephalartos arenarius

The Alexandria cycad, an endangered blue-green Encephalartos from the coastal dune thicket near Alexandria in South Africa's Eastern Cape. Its stem is partly buried in sand. It wants a mild, frost-free maritime climate, a very sandy free-draining soil and bright light.

Encephalartos arenarius
Photo: User:BotBln, CC BY-SA 3.0, via Wikimedia Commons
At home, aim for
Day Cool-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Dry airBand in Plantistry
Light Bright, filtered lightDLI and PPFD in Plantistry
No rest periodGrows in the ground

Where it grows wild

Densely wooded coastal dunes and dune scrub on deep sand, where plants grow in thicket openings and under a broken canopy.

Low coastal dunes near sea level to a few hundred metres; no elevation records are available.

Eastern Cape (South Africa)

🔒 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.