Royal Fern - Osmunda regalis

Bare Roots will be ready in April for pick up or shipping

Phonetic: os-MUN-dah ree-GAY-liss

Royal fern, is a striking deciduous fern native to wetland habitats across eastern North America. It thrives in partial to full shade and prefers consistently moist to wet soil. Royal fern is commonly found in swamps, bogs, stream banks, and moist woodland edges, where its deep roots help stabilize soil and retain moisture. While it can tolerate brief flooding, it does not thrive in standing water or drought conditions. Its tall, elegant fronds—resembling those of flowering plants—make it a distinctive presence in shaded, damp environments and a valuable species for naturalized wetland gardens.

Unlike flowering plants, royal fern does not bloom but reproduces through spores. In spring and early summer, the fern produces large,  fronds that can reach up to five feet tall. The fertile fronds bear clusters of sporangia—structures that contain spores—at their tips, which turn from green to brown as they mature. Spore release typically occurs in late spring to early summer, after which the spores are dispersed by wind. Once they land in a suitable moist substrate, they germinate beginning the fern’s life cycle anew. Because it lacks flowers and seeds, the royal fern depends on consistently damp conditions for successful reproduction.

Royal fern plays an important role in wetland ecosystems. Its dense root systems help prevent erosion along stream banks and stabilize soil in saturated areas. The plant provides shelter and microhabitats for amphibians, small insects, and ground-dwelling invertebrates, contributing to overall habitat complexity. 

• Hardiness Zone: 3-10
• Native Region: BONAP Map
• BONAP Map Key Color Guide: Map Color Key
• Sun Exposure: Part Shade, Shade
  
• Soil Type: Moist, Wet
• Mature Plant Size: 5-6'H, 2-3'W
• Plant Spacing: 3'
• Host Plant: Osmunda Borer Moth
  
• Advantages: Deer Resistant, Rabbit Resistant, Poor Soil Tolerant
• Landscape Uses: Woodland Garden, Rain Garden
• Companion Plants: Cinnamon Fern, Foam Flower, Cardinal Flower, Joe Pye Weed