Garden Scheme
Plant library · Ferns & Shade Plants
Matteuccia struthiopteris
Ostrich Fern brings a tall, feathery vertical layer to moist, partly shaded planting areas. Its vase-shaped fronds rise to about 4 feet, making it useful behind lower shade plants or as a soft screen along the back of a woodland-style bed. This native perennial gradually forms lush colonies, so it reads best as a repeating mass rather than a single isolated accent.
Space Ostrich Fern 3 ft apart, measured center to center (90 cm).
The mature spread is about 3 ft (90 cm), so neighboring plants just meet at maturity without crowding.
Treat 3 ft as a planning baseline — cultivar and local growing conditions shift the final footprint.
Use Ostrich Fern where the soil stays reliably moist: beside a shaded path, at the edge of a damp bed, or beneath open-canopied trees. Set the planting far enough from narrow walkways that mature fronds do not lean into circulation space. A grouped planting can fill a broad, shaded backdrop and soften the transition between shrubs, structures, and lower perennial layers. Avoid treating it as a tightly contained border plant; its colony-forming habit needs room to develop.
Space plants 3 feet apart, center to center. Each plant reaches about 3 feet wide, so that interval allows neighboring crowns to meet into a continuous leafy mass without beginning overcrowded. Reserve a bed at least 3 feet deep for a single row, and allow extra width at the outer edge where colonies can expand over time. Keep the front of the planting reachable for removing worn fronds.
Choose partial shade and maintain high soil moisture through the growing season. Place it in beds that naturally hold moisture or can be watered consistently, rather than in dry pockets under dense roots or roof overhangs. In cooler conditions, the fern can take more light when moisture remains dependable; exposed, drying sites are a poor fit.[1][2]
Fresh sterile fronds unfurl in spring and create the plant’s fullest screen through the main growing season. The foliage declines in fall as the fern heads into winter dormancy, so do not rely on it for year-round coverage along a boundary or foundation. Retain access to the crowns for seasonal cleanup after the fronds have faded.[2]
Plan for gradual outward movement from the original crowns, especially in favorable moist shade. Give a colony a defined zone away from small, slow-growing plants that could be overtaken, and use a wider bed rather than a narrow strip. A sheltered position also helps preserve the tall fronds, which can be damaged in windy exposure.[1][2]