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Species library › Blechnum › Blechnum dilatatum
Ferns Partly documented

Blechnum dilatatum

A high-mountain fern of New Guinea, recorded from about 1500 to 3560 m. It lives in permanently cool, very humid air with no real dry season, so it needs cool nights, constant moisture and high humidity and is unlikely to tolerate heat.

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

Where it grows wild

Montane forest, forest edges and open ground in the New Guinea highlands; nothing species-specific was found, so this follows the measured range and montane Blechnum in general.

Recorded 1525–3560 m, median 2460 m.

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.