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Species library › Blechnum › Blechnum fernandezianum
Ferns Partly documented

Blechnum fernandezianum

A hard fern endemic to the Juan Fernández Islands off Chile, growing in the islands' cool, constantly humid oceanic forest. It wants mild, even temperatures year-round, steady moisture and shade, and dislikes heat more than cold.

At home, aim for
Day Cool-growingTargets 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

Terrestrial fern of moist forest and shaded ravines on the oceanic Juan Fernández archipelago; detail is generalised from the island's Blechnum species and the forest type rather than species-specific accounts.

Recorded sites sit at roughly 190–300 m on Robinson Crusoe and Alejandro Selkirk islands; few records carry an elevation.

Juan Fernández IslandsChile

🔒 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

Grow Blechnum fernandezianum? Add it to a free garden and its full profile opens. Pro opens all 38,374 profiles in the library, plants and fungi.

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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.