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Species library › Blechnum › Blechnum whelanii
Ferns Partly documented

Blechnum whelanii

A ground fern of upland rainforest in north-east Queensland and Papua New Guinea, mostly at 1,000–1,700 m. It wants cool, shaded, constantly moist conditions with a drier, cooler winter. Little is published about it; conditions here are drawn from the measured sites and typical Blechnum of montane rainforest.

At home, aim for
Day IntermediateTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Humid airBand in Plantistry
Light ShadeDLI and PPFD in Plantistry
No rest periodGrows in the ground

Where it grows wild

Shaded floor and stream banks of upland tropical rainforest. Details are generalised from the genus and the recorded elevations.

Recorded at 500–1,700 m, median about 1,430 m.

Australia (Queensland)Papua New Guinea

🔒 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.