For those who like things big, this is a large form of the Ostrich Plume or Shuttlecock Fern with fronds up to 1.5m tall; named in the USA but originally from European stock. Beautiful, symmetrical 'Shuttlecocks' of fresh, very light-green fronds in spring, opening out during summer. Spreads slowly underground to form a colony. Moist, even boggy soil in shade/semi-shade. Hardy.