Adiantum raddianum (Delta Maidenhair)

Elegant and fast-growing, Adiantum raddianum (Delta Maidenhair) is a tufted evergreen fern with smooth, purplish-black stalks bearing triangular, 3-pinnate, lacy fronds composed of rounded, fan-shaped segments. Emerging light green, they darken with age and can reach 18 in. in length (45 cm). Popular as a houseplant, it is long-lived if it receives sufficient humidity and is not exposed to drafts.

Elegant and fast-growing, Adiantum raddianum (Delta Maidenhair) is a tufted evergreen fern with smooth, purplish-black stalks bearing triangular, 3-pinnate, lacy fronds composed of rounded, fan-shaped segments. Emerging light green, they darken with age and can reach 18 in. in length (45 cm). Popular as a houseplant, it is long-lived if it receives sufficient humidity and is not exposed to drafts.

  • Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society for its outstanding qualities
  • Grows up to 1-2 ft. tall and wide (30-60 cm).
  • A part to full shade lover, it is best grown in moist, well-drained soils. If grown in full shade, the foliage will lose its vitality. As a houseplant, grow it in bright indirect light in the summer and full light in the winter.
  • A great choice for beds and borders, underplanting shrubs and roses, or containers.
  • Virtually disease free. Deer resistant.
  • The plant requires little pruning other than the removal of dead leaves. Propagate by spores.
  • Native to Tropical Americas, West Indies
  • Find where this species is invasive in the United States.

Requirements

Hardiness 10
– 11

Heat Zones 10
– 11

Plant Type Ferns
Plant Family Adiantum – Maidenhair Ferns
Exposure Partial Sun, Shade
Season of Interest Spring (Early,Mid,Late)Summer (Early,Mid,Late)FallWinter
Height 1'
– 2'
(30cm
– 60cm)
Spread 1'
– 2'
(30cm
– 60cm)
Spacing 24″ (60cm)
Water Needs Average
Maintenance Low
Soil Type Loam
Soil pH Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Plant of Merit, Showy, Evergreen
Garden Uses Beds and Borders, Patio and Containers, Underplanting Roses and Shrubs
Garden Styles City and Courtyard, Informal and Cottage