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Species library › Cycas › Cycas siamensis
Other Well documented

Cycas siamensis

A small cycad of mainland Southeast Asia's seasonally dry deciduous forest and savanna, with a swollen, partly underground trunk adapted to dry seasons and grass fires. It wants heat, strong light and a dry winter rest.

Cycas siamensis
Photo: Miq., CC0, 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
Expects a seasonal restGrows in the ground

Where it grows wild

Grows in dry dipterocarp and mixed deciduous forest and grassy savanna on well-drained, often sandy or rocky soils, in open sun to light shade.

Recorded 100 to 300 m; measured sites reach about 650 m.

ThailandCambodiaVietnamLaosMyanmar

🔒 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 CC0 licence, unmodified.