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Species library › Cycas › Cycas zeylanica
Other Partly documented

Cycas zeylanica

A critically endangered cycad of the Andaman and Nicobar Islands, with a small remnant population in Sri Lanka. An unbranched trunked cycad to about 3 m with glossy pinnate leaves up to 2 m long; grow it as a hot, humid, frost-free tropical plant.

Cycas zeylanica
Photo: Mare44, CC BY-SA 4.0, 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

Lowland tropical forest and forest margins on the islands; detailed habitat for this species is thin in sources available here, so conditions are inferred from the measured climate and related Cycas of coastal Asian forest.

Lowland; the climate sites sit at roughly 110–240 m.

Andaman Is.Nicobar Is.Sri Lanka

🔒 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.