Osmunda cinnamomea #1 (Cinnamon Fern)

Cinnamon Ferns are statuesque beside a pond or water feature where they can grow to be 5′ tall! The coppery fertile fronds in early summer rival blooming flowers with their charm. These ferns are clump-forming during their early years of establishment, but will eventually branch out into colonies if in ideal situations of slightly acidic, moist to wet soils. Even full sun is tolerated if given favorable growing conditions.

Sources:
Native Ferns, Moss, & Grasses by William Cullina
Growing and Propagating Wild Flowers by Harry R. Phillips
Missouri Botanical Garden
Lady Bird Johnson Wildflower Center
The Morton Arboretum-Black Walnut Toxicity

Photo Credit:
Integrated Landscape: Physics major, Public domain, via Wikimedia Commons