Plant Profile: Osmundastrum cinnamomeum

Cinnamon fern is a native species that thrives in damp, bog-like areas near streams and on shaded cliffs and ledges. Typically, it grows in clusters reaching heights of 2 to 3 feet, but with consistent moisture, it can attain heights of up to 6 feet. In early spring, distinct spore-bearing fronds emerge, which are stiff and quickly turn brown. The well-known "fiddleheads" sprout from the plant's base, unfurling into large, upright, pinnately-compound fronds that are yellowish-green and can grow between 2 to 4 feet long. These fronds maintain their visual appeal throughout the summer before turning yellow in the fall. The common name of the plant derives from the cinnamon-hued fibers located near the bases of the fronds. Additionally, the roots of these ferns provide osmunda fiber, which is commonly used in orchid potting.

This fern is easy to cultivate in medium to wet soils and thrives in partial to full shade. It prefers moist, nutrient-rich, humusy, and acidic soils but can adapt to less favorable conditions. With a compact, horizontal rhizome, it exhibits vigorous growth. However, it may enter dormancy during dry spells. While it takes time to establish, it is known for its longevity.