Asplenium alvarezense

An Asplenium endemic to the Tristan da Cunha group and Gough Island in the South Atlantic, where the climate is cool, wet and windy year round. Little is published beyond the 1905 description, so conditions here come from the measured island climate and general Asplenium ecology.

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

Species-specific habitat notes are not available; on these islands ferns grow in wet tussock, fern bush and sheltered rocky banks exposed to constant oceanic wind and spray.

Records from 20 to 1000 m, median 40 m (6 records with elevation).

Tristan da CunhaGough Island

🔒 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.