Adiantum raddianum

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Adiantum raddianum
Starr 030807-0143 Adiantum raddianum.jpg
Scientific classification
A. raddianum
Binomial name
Adiantum raddianum

Adiantum raddianum, the Delta maidenhair fern, is one of the most popular ferns to grow indoors.[2] Its common name comes from its shiny, dark leafstalks that resemble human hair. The triangular fronds are semi-erect in the beginning then droop gracefully as they age and can be up to 12 inches (30 cm)[3] long by 6 inches (15 cm) wide.

This plant is hardy down to 5 °C (41 °F), so must be grown indoors in temperate regions. However it may be placed outside in a sheltered spot during the summer months.[4] It requires high humidity, well-drained soil, bright indirect light, and a fairly constant temperature.[2] The cultivars ‘Brilliantelse’ and ‘Kensington Gem’ have won the Royal Horticultural Society's Award of Garden Merit.[4][5]



  1. ^ a b c Christenhusz, Maarten J. M.; Zhang, Xian-Chun; Schneider, Harald (2011). "A linear sequence of extant families and genera of lycophytes and ferns" (PDF). Phytotaxa. 19: 7–54.
  2. ^ a b Adiantum raddianum, Missouri Botanical Garden.
  3. ^ Adiantum raddianum, NC Cooperative Extension.
  4. ^ a b "Adiantum raddianum". Royal Horticultural Society. Retrieved 3 January 2018.
  5. ^ "AGM Plants - Ornamental" (PDF). RHS. 2017. Retrieved 3 January 2018.

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