Adiantum gravesii

A small maidenhair of southern China and northern Vietnam, described by Hance in 1875. Records come from moist cliffs in the karst of Guangxi, Guizhou, Hunan, Hubei and Guangdong at about 400–1100 m. It has a real subtropical winter, so it wants a cool rest.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Ordinary room humidityBand in Plantistry

Light ShadeDLI and PPFD in Plantistry

Expects a seasonal restGrows on rock (lithophyte)

Where it grows wild

Herbarium labels mention moist cliffs. Most localities lie in limestone karst country, so it is probably a fern of damp, shaded limestone faces. The sources checked give no fuller description.

Recorded at 475–1100 m, median 575 m (17 records).

China: GuangxiChina: GuizhouChina: HunanChina: HubeiChina: GuangdongVietnam: north (Quang Binh and the northern provinces)

🔒 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.