Asplenium braithwaitei

A Macaronesian spleenwort of the Canary Islands, Madeira and Cape Verde, split from the Asplenium aethiopicum complex and raised to species rank by Viane in 2021. It grows on rocks and banks in a mild oceanic climate with dry summers; grow it bright-shaded, mild and gritty.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Ordinary room humidityBand in Plantistry

Light Dappled lightDLI and PPFD in Plantistry

Expects a seasonal restGrows on rock (lithophyte)

Where it grows wild

Recorded on Madeira and the western Canaries at 300–1000 m, on rocks, walls and banks in laurel-forest and thermophilous scrub zones. Detailed habitat notes were not reachable; the A. aethiopicum group are rock and bank ferns tolerant of seasonal dryness.

Recorded at 300–1000 m, median 650 m (15 records).

Canary Is.Cape VerdeMadeira

🔒 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.