Five Finger Maidenhair Fern is a lovely woodland native, thriving in moist humus rich soils. Preferring cool summer temperatures, Adiantum pedatum is hardy all the way to zone 2. The bright green airy fronds are made more attractive by the shiny wiry black stems. Since Adiantum pedatum spreads by rhizomes on the surface of moist soils, it can eventually form an excellent woodland groundcover. This fern will not perform well in full sun or hot summer sites.