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Species library › Asplenium › Asplenium attenuatum
Ferns Well documented

Asplenium attenuatum

Simple spleenwort

A small, tufted spleenwort of eastern Australia with narrow, strap-like fronds 10 to 35 cm long that taper to a long point and often carry a plantlet at the tip. It grows mostly on shaded rocks in rainforest gullies, sometimes on trees, so it wants low light, steady moisture and humid, moving air.

Asplenium attenuatum
Photo: Poyt448, Peter Woodard, CC BY-SA 4.0, via Wikimedia Commons
At home, aim for
Day IntermediateTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Ordinary room humidityBand in Plantistry
Light ShadeDLI and PPFD in Plantistry
No rest periodGrows on rock (lithophyte)

Where it grows wild

Usually on rocks in shady places or gullies in rainforest, where moisture stays high; occasionally epiphytic on trees. There are two varieties: var. attenuatum, with fronds lobed in the lower third or pinnate at the base, and var. indivisum, with simple fronds.

Mostly coastal and near-coastal ranges; no specific elevation range is published in the sources used.

Australia (New South Wales)Australia (Queensland)

🔒 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-SA 4.0 licence, unmodified.