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Species library › Blechnum › Blechnum oceanicum
Ferns Little published: much of this is inferred from related species

Blechnum oceanicum

A terrestrial hard fern known mainly from New Caledonia, where most records come from humid forest between sea level and 1600 m. Grow it like other New Caledonian forest Blechnum: shaded, evenly moist, warm-temperate to subtropical.

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

Grows in the understory of humid forest and forest edges in New Caledonia; detail is generalised from related Blechnum.

Recorded at 0–1625 m, median 640 m.

New Caledonia

🔒 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.