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Species library › Cycas › Cycas armstrongii
Other Well documented

Cycas armstrongii

A slender, usually single-trunked cycad from the savanna woodlands around Darwin in Australia's Top End. It is adapted to a hot monsoon climate with a long rainless dry season and regular fire, often dropping its leaves late in the dry and flushing new ones with the first rains.

Cycas armstrongii
Photo: John Tann from Sydney, Australia, CC BY 2.0, via Wikimedia Commons
At home, aim for
Day Warm-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Dry airBand in Plantistry
Light Full sunDLI and PPFD in Plantistry
Expects a seasonal restGrows in the ground

Where it grows wild

Open eucalypt woodland and savanna on sandy or lateritic soils near the coast, often in large stands; the canopy above is thin and fires sweep the grass layer most years.

Near sea level; recorded elevations are 12–90 m.

Northern TerritoryAustralia

🔒 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 2.0 licence, unmodified.