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Species library › Blechnum › Blechnum nudum
Ferns Well documented

Blechnum nudum

Fishbone water fern, a common fern of south-eastern Australia's moist gullies and creek banks, often forming a short black trunk with a vase of fronds. It likes cool, damp, partly shaded spots with constantly moist soil.

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

Creek banks, gullies and swampy ground in wet sclerophyll and damp forest, often in large colonies along watercourses.

Recorded at 40–1,350 m, median about 455 m (14 records).

VictoriaNew South WalesTasmaniaQueenslandSouth Australia

🔒 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.