Ostrich Fern is a deciduous fern that earns its name from the striking, feathery fronds that truly resemble ostrich plumes. This rhizomatous spreader grows 3 to 6 feet tall in cool, moist climates, with finely dissected medium green foliage that unfurls in spring. Hardy in zones 3 through 7, it thrives in partial to full shade and spreads by underground rhizomes to form dense, lush colonies. The 'Jumbo' selection pushes toward the larger end of the size spectrum, making it a bold statement in shaded gardens, rain gardens, and naturalized woodland settings.
Partial Shade
Moderate
3-7
72in H x 60in W
—
High
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The feathery, medium green fronds emerge at the base of clumps in spring with an almost theatrical grace, resembling the plumes of an ostrich in full display. Underground rhizomes allow it to spread into dense colonies under ideal conditions, turning damp, shaded corners into a living tapestry. This deciduous fern prefers cool summers and constant moisture; in warm, humid climates it can struggle, but in northern gardens it thrives without pest or disease pressure to manage.
Ostrich Fern is grown for its ornamental foliage to naturalize shaded woodland areas and establish living erosion control in rain gardens. The spreading rhizomes stabilize wet soils while its dense canopy helps prevent erosion on slopes and near waterways.
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Transplant ferns into moist, rich soil in partial to full shade. Space plants 36 to 60 inches apart to allow for spreading via underground rhizomes.
As a deciduous fern, ostrich fern naturally dies back in autumn. Remove dead fronds in late fall or early spring as they brown. No active pruning is needed; allow the rhizomatous growth to spread and fill in naturally.
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