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Species library › Blechnum › Blechnum neohollandicum
Ferns Well documented

Blechnum neohollandicum

This is the prickly rasp fern, better known as Doodia aspera. It is a tough, terrestrial fern of eastern Australian forests, with rough, toothed fronds that flush red when new. It is easy to grow given steady moisture, acidic organic soil and shade to part sun.

At home, aim for
Day Cool-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Ordinary room humidityBand in Plantistry
Light Dappled lightDLI and PPFD in Plantistry
No rest periodGrows in the ground

Where it grows wild

It grows as ground cover on rainforest margins and in damp, tall eucalypt forest, often in moist gullies.

Mostly lowland to low montane. Records median 325 m, most below about 600 m.

QueenslandNew South WalesVictoriaNorfolk IslandLord Howe IslandNew Zealand (North Island)

🔒 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.