Common Name: ostrich fern
Native Range: Europe, eastern Asia, eastern North America
Zone: 3 to 7
Height: 3.00 to 6.00 feet
Spread: 5.00 to 8.00 feet
Bloom Time: Non-flowering
Sun: Part shade to full shade
Water: Medium to wet
Suggested Use: Naturalize, Rain Garden
Tolerate: Rabbit, Heavy Shade, Erosion, Clay Soil, Wet Soil
Easily grown in average, medium to wet soil in part shade to full shade. Best in rich soils with constant moisture. Soil must never be allowed to dry out. Spreads by underground rhizomes to form dense colonies in optimum growing conditions. Prefers cool climates, and is generally intolerant of the hot and humid summers of the deep South.
Ostrich fern is a clump-forming, upright to arching, rhizomatous, deciduous fern which typically grows 2-3' tall in cultivation, but may reach 6' tall in moist, cool climates in the wild. The showy parts of this fern are the finely dissected, medium green, vegetative (sterile) fronds which, as the common name suggests, exhibit the feathery appearance of long ostrich plumes. The vegetative fronds emerge at the narrow base of the clumps in spring as the familiar "fiddleheads" from where they unfurl to a maximum length of 4'. These vegetative fronds usually depreciate as the summer proceeds, begin to look rather tattered by early fall and finally lose their leaflets later in the fall as the plant goes dormant for the winter. The inner, erect, spike-like, dark brown fertile fronds are much shorter (to 2' tall) and remain dark brown year-round. Ferns do not produce flowers.
No serious insect or disease problems.
Mass in moist, shady woodland areas, wild gardens or wet areas near streams or ponds. Combines well with astilbes or hostas. Plant in conjunction with early spring wildflowers (e.g., trilliums, bloodroot, trout lilies or Dutchman's breeches) which will be well on the way toward dormancy by the time this fern reaches full size.