Adiantum incertum

A South American maidenhair described by Lindman in 1903. It grows in seasonal semi-deciduous forest and gallery forest from Paraguay and Bolivia across central and southern Brazil, and is well recorded around Iguaçu Falls. It needs warmth, shade and a slightly drier winter.

At home, aim for

Day IntermediateTargets 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 in the ground

Where it grows wild

Labels describe it in semi-deciduous seasonal forest (Iguaçu), in low gallery forest on silty-sandy soil, beside rivers, and on rocks at a stream confluence in Goiás.

Recorded at 150–570 m, median 235 m (11 records).

Brazil: South, Southeast and West-CentralBoliviaParaguay

🔒 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.