Asplenium boydstoniae

Boydston's spleenwort

Boydston's spleenwort, a sterile hybrid of Tutwiler's spleenwort and ebony spleenwort known wild only from Havana Glen in Hale County, Alabama. It grows on mossy conglomerate rock in a shaded ravine; in cultivation give it a humid, shaded rock with slightly acidic grit.

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

Grows on a moss- and lichen-covered conglomerate boulder in a shaded ravine, the only wild site of its Tutwiler's spleenwort parent. The rock is siliceous pebbles in sandstone, with slightly acidic soil (pH 5–6).

Low elevation; Havana Glen is in the Alabama coastal plain at roughly 100 m.

Alabama

🔒 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.