This perennial fern has upright compound leaves whose leaflets are often slightly curved and twisted. The root system is rhizomatous and fibrous and can form dense colonies and performs as a wonderfully as a ground cover. Marsh fern prefers full sun to light shade, wet to moist conditions, and a sandy acid soil although it readily adapts to other kinds of soil. It will not tolerate standing water or excessive shade. Foliar disease and insect pests are rarely troublesome.
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