Maidenhair fern care

Adiantum raddianum

Thirsty’s starting schedule for Maidenhair fern: about every 3 days. Check the soil and adjust it to your home.

Watering

Keep the soil constantly moist and never let the roots dry out, but don't keep it waterlogged, which can cause root rot. [1][2]

Light

Bright, indirect light indoors, or partial shade; it struggles in full sun or deep shade. [1][2]

Humidity

Needs high humidity; a bathroom or a room humidifier helps. [1][2][3]

Soil and potting

Well-drained soil rich in organic matter. [2]

Sources

NC State Extension (Extension Gardener Plant Toolbox): Adiantum raddianum (Delta Maidenhair, Maidenhair Fern, Pacific Maidenhair)
UF/IFAS Extension (EDIS): FPS13/FP013: Adiantum spp.: Maidenhair Fern
University of Minnesota Extension: Growing tropical ferns indoors

This page summarizes the sources above; follow them for the full picture. Light, pot, soil and season all change how fast a plant dries out, so check the soil before you water. Last reviewed October 9, 2026.

Thirsty reminds you when your Maidenhair fern needs water, and tracks every watering. Free, with no account.