Adiantum raddianum

Common Names

Maidenhair Fern, Delta Maidenhair, Delta Maidenhair Fern

Summary

Delta Maidenhair Fern is a tropical American evergreen fern with a tufted, clump-forming habit and distinctive wiry black stalks supporting delicate, lacy fronds. Fronds are triangular and 3-pinnate with numerous tiny leaflets; young fronds are light green and darken with age; it grows about 1–2 ft tall and wide and spreads by rhizomes.

Culture favors bright indirect light to shade, consistently moist, well-drained soil, and high humidity; avoid direct sun and drafts; temperatures around 65–75°F; water regularly to keep soil moist but not soggy; repot every 1–2 years or when roots fill the pot; propagate by division; commonly grown as a houseplant, terrarium, or bathroom plant; non-toxic to humans and pets.

Lifecycle

Perennial

Height

1-2 feet

Spread

1-2 feet

Hardiness Zones

Zones 10-11

Sunlight Requirements

Ideally partial shade.

Soil Type

Well-draining, moist loam soil or peat-based potting mix rich in organic matter

Soil Drainage

Well-draining soil

Soil pH

7–8 (neutral to slightly alkaline)

Bloom Time

Does not bloom

Foliage Color

Green

Fall Foliage Color

Green

Leaf Lifecycle

Deciduous

Growth Rate

Slow-growing; typically 3 years to reach mature size

Seasons of Interest

Spring and Summer

Propagation Methods

Division, Spores

Attracts Wildlife

Attracts none