Blechnum subcordatum

A fern known mainly from New Caledonia, with most records from humid forest at around 800-1200 m. Grow it warm-temperate and humid with dappled light and steady moisture.

At home, aim for

Day IntermediateTargets 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

Recorded mostly in humid forest of New Caledonia's central mountain chain; specific microhabitat information is lacking, so conditions follow the measured climate and related forest Blechnum.

Recorded elevations 55-1200 m, median 900 m.

New CaledoniaVanuatu

🔒 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.