Asplenium chihuahuense

A rare spleenwort of the Sierra Madre Occidental in Chihuahua and Durango, Mexico. It is very like Asplenium adiantum-nigrum and has been shown to be a fertile allohexaploid hybrid between that species and an unknown diploid. It grows on ledges and in rock crevices in pine and pine-oak forest at about 1,800–2,600 m, with a monsoon summer, a dry spring and cold winter nights.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Dry airBand in Plantistry

Light Dappled lightDLI and PPFD in Plantistry

Expects a seasonal restGrows on rock (lithophyte)

Where it grows wild

Collectors record it on ledges, in stream canyons and rock outcrops in pine forest, in deep limestone crevices, and in shaded dry crevices of boulders in a meadow along a stream. It is a rock plant of the pine-oak zone, rooted in crevices where moisture collects.

Records with altitudes fall between about 1,830 and 2,600 m.

Mexico (Chihuahua)Mexico (Durango)

🔒 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.