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Species library › Cycas › Cycas rumphii
Other Well documented

Cycas rumphii

A tree-sized cycad of tropical coasts in Malesia, growing to about 10 m with long, palm-like fronds. It lives at near sea level in coastal forest and woodland on coral sand and limestone, in constantly hot, humid air.

Cycas rumphii
Photo: 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

Coastal closed forest and woodland on calcareous soils, often on stabilised dunes of coral sand and limestone.

Recorded at 1–80 m, median 3 m: a strand and lowland plant.

IndonesiaMalukuSulawesiJawaBorneoLesser Sunda IslandsNew GuineaChristmas IslandTimor-LesteWestern Australia

🔒 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.