Robust Male Fern

Robust male fern is the named selection Dryopteris × complexa ‘Robust’, a vigorous hybrid with large, dark green fronds that form a strong clump. Its arching, vase-like growth suits a woodland garden or a spacious shaded border. ## Form and placement Published mature sizes vary: Perennials.com gives about 35–47 inches tall and 29–35 inches wide, while Missouri Botanical Garden lists the selection as typically 3–4 feet tall, sometimes reaching 5 feet, and about 3–4 feet wide. Leave enough room for the fronds to arch and spread. It can be used in borders, containers, mass plantings, or as a specimen among shade-loving plants. ([Perennials.com](https://www.perennials.com/plants/dryopteris-complexa-robust.html); [Missouri Botanical Garden](https://plantfinder.mobot.org/PlantFinderDetails.aspx?basic=%25&isprofile=0&taxonid=257105)) ## Soil and water Plant in partial or full shade in average to moist, well-drained soil. Rich soil and regular moisture support large fronds, though the Missouri Botanical Garden notes that established plants can tolerate some drought. ([Perennials.com](https://www.perennials.com/plants/dryopteris-complexa-robust.html); [Missouri Botanical Garden](https://plantfinder.mobot.org/PlantFinderDetails.aspx?basic=%25&isprofile=0&taxonid=257105)) ## Maintenance The fern is semi-evergreen in mild-winter climates and more deciduous in colder gardens. Remove old fronds in spring before the new ones unfurl, then mulch with leaves to help the soil retain moisture. The cited profiles describe it as low-maintenance and resistant to deer and rabbits. ([Perennials.com](https://www.perennials.com/plants/dryopteris-complexa-robust.html); [Missouri Botanical Garden](https://plantfinder.mobot.org/PlantFinderDetails.aspx?basic=%25&isprofile=0&taxonid=257105))