Asplenium iidanum

A named Japanese spleenwort hybrid (Asplenium ×iidanum) described in 1979. It is a rare natural hybrid known only from Japan. GBIF records place it in low hills with a warm-temperate climate: hot, very wet summers and cold winters with light frost.

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

Expects a seasonal restGrows on rock (lithophyte)

Where it grows wild

Probably grows on shaded rock faces, stone walls and forest banks, the habitat of its likely spleenwort parents. Its parentage and habitat were not checked for this profile, so treat this as an inference.

Records lie at 400–600 m, with a median of 565 m (3 records).

Japan

🔒 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.