Ostrich fern is one of the largest and best-loved garden ferns, with bold green fronds shaped like tall feather plumes. In good conditions the spring fronds can reach 5 to 6 feet, forming a dramatic vase-shaped clump.
It is native to wet woods and streambanks and spreads quickly by underground runners, so it is perfect for filling moist, shady areas, naturalizing along a creek or covering a large bed. Deer and rabbits leave it alone, and fronds turn bronze-gold in fall.
What it looks like
Large, feather-shaped green fronds are widest near the top and taper down to a short bare stem, like an ostrich plume. The spring fronds rise in a tight, upright vase shape and arch outward at the tips, reaching 3 to 6 feet tall. Later a shorter set of stiff, dark brown, bead-like fertile fronds appears in the center. Each clump spreads 3 to 4 feet wide and runners form colonies of many vases. In early summer a planting looks like a sea of tall green plumes.
Growing it with lavender
Ostrich fern wants damp soil and shade, the opposite of lavender, so plant it in a low, moist area, along a stream or in a shaded bed away from the lavender.
Care
Grows in full sun to full shade but needs consistently moist to wet soil; in sun it must never dry out. Hardy in zones 3 to 7. It spreads fast by runners, so give it room or dig out extras in spring.
At a glance
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Botanical name: Matteuccia struthiopteris
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Flower color: Insignificant
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Foliage: Bright green, bronze-gold in fall
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Growth habit: Upright, vase-shaped clumps that spread
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Mature size: 36 in–6 ft tall × 36 in–4 ft wide
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USDA hardiness zones: 3–7
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Light: full sun, part sun to part shade, full shade
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Deer resistance: Resistant
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Pollinator value: Low
Sizes and shipping
One full 20-cell plug tray: 20 large, field-ready plugs of this variety (cells about 2¾ in. wide × 3¼ in. deep or deeper), ready to plant out or pot up. Potted plants and plug trays ship during our live-plant seasons, March 1–May 31 and October 1–November 30; June through September is local pickup only. Plugs, potted plants and trays do not ship to AZ, CA, HI, ID, NV, OR, UT or WA.