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Species library › Asplenium › Asplenium australasicum
Ferns Partly documented

Asplenium australasicum

Crow's-nest fern

A large bird's-nest fern of eastern Australian rainforest and the southwest Pacific, forming a rosette of undivided fronds 60–80 cm long on trees and rocks. The funnel collects falling leaves that feed the plant. It adapts readily to cultivation given good drainage, warmth, moderate shade and humid air.

At home, aim for
Day IntermediateTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Ordinary room humidityBand in Plantistry
Light Dappled lightDLI and PPFD in Plantistry
Expects a seasonal restGrows on trees (epiphyte)

Where it grows wild

Grows in rainforest as a large epiphyte on trees and on rocks. The erect, stout rhizome bears a rosette of radiating fronds whose centre acts as a reservoir for debris.

Few records carry an elevation. In eastern Australia it occurs from coastal lowland rainforest to the tablelands, and it also grows on Lord Howe Island and Pacific islands near sea level.

Australia: QueenslandAustralia: New South Wales, including Lord Howe IslandNorfolk IslandNew Caledonia and VanuatuFiji, Samoa, Tonga and NiueCook Islands and French PolynesiaMicronesia: Caroline, Marshall, Gilbert and Mariana Islands

🔒 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.