Cycas scratchleyana
A tree-forming cycad of New Guinea and nearby islands, mostly in the lowlands of Papua New Guinea. It needs hot, humid conditions all year and bright light, and is not suited to cool rooms.
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
Grows in lowland forest, forest edges and coastal or monsoon woodland, often in fairly open, bright places.
Recorded at 3–1,220 m, median 60 m; mostly lowland.
Papua New GuineaNew GuineaMalukuBismarck Archipelago
🔒 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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More Cycas
Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app.