Adiantum jordanii

California maidenhair

A maidenhair fern of the Mediterranean-climate woodlands of California, south-west Oregon and northern Baja California. It grows actively in the cool, wet winter and spring and goes dormant when the soil dries in summer. For growers it is a winter-growing fern that needs shade, a cool season and a dry summer rest.

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 in the ground

Where it grows wild

Shaded woods and the moister spots within them, such as damp rock outcrops, stream banks and the lower parts of north-facing slopes, in oak woodland, chaparral, mixed forest and grassland edges.

Mostly foothills and coast ranges below about 1,200 m; few records carry an elevation.

CaliforniaOregonBaja California

🔒 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

Grow Adiantum jordanii? Add it to a free garden and its full profile opens. Pro opens all 38,374 profiles in the library, plants and fungi.

Start free Sign in

More Adiantum

Adiantum pedatum Adiantum viridimontanum Adiantum capillus-veneris Adiantum aleuticum Adiantum atroviride Adiantum trapeziforme Adiantum aethiopicum Adiantum amblyopteridium Adiantum hispidulum Adiantum alarconianum Adiantum bellum Adiantum lianxianense All 262 →

Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app.