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Species library › Cycas › Cycas javana
Other Partly documented

Cycas javana

A lowland Cycas from Java and Sumatra, known in the wild from very few records. It lives in a hot, humid, almost aseasonal climate with only a short drier spell in July to September, so grow it warm and evenly moist in bright light.

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

Very little is published on its habitat; Indonesian Cycas of this group typically grow in lowland forest edges, open secondary forest and scrub on well-drained slopes. The two records come from the same hill site in West Java.

The single recorded site is at about 330 m.

JavaSumatra

🔒 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.