The fronds of Cinnamon Fern occur in groups, rising from a shallow, black rootstock. Fertile fronds appear first as furry fiddleheads, gradually becoming rigid and erect– turning from green to cinnamon brown. Sterile fronds arch ... outwards forming a vase-shaped circle enclosing the cinnamon fronds. It can reach a height of 6 ft and provides seasonal cover for birds and other wildlife. Thrives in moist soil, from full sun to partial shade. These plants spread very slowly, and can be used as a companion plants with other natives.