Asplenium bosco-gurinense

A rare hybrid spleenwort described in 2013 and named after Bosco/Gurin in Ticino, Switzerland. Like other Alpine crevice spleenwort hybrids it is sterile and needs a cold winter, bright light and a gritty rock crevice.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Ordinary room humidityBand in Plantistry

Light Bright, filtered lightDLI and PPFD in Plantistry

Expects a seasonal restGrows on rock (lithophyte)

Where it grows wild

Described from the Bosco/Gurin area of the southern Swiss Alps. Its parentage was not confirmed in the sources reached; Alpine Asplenium hybrids typically grow in rock crevices and walls alongside their parents.

Unknown; Bosco/Gurin lies at roughly 1500 m.

Switzerland

🔒 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.