Plant Profile: Eriophorum angustifolium

This perennial sedge is not indigenous to the mid-Atlantic region, extending from Pennsylvania southward, nor is it found throughout the southern states. In its native habitats, which include the northern United States and Siberia, the plant thrives in wet environments such as marshes, bogs, and very shallow waters, including wet ditches. It can also flourish in predominantly moist soil near ponds and rivers. This sedge prefers acidic pH levels and is fond of peat, although it can also adapt to sandy or clay soils and can grow in full sun to partial shade.

With proper attention to its location, water, soil, and nutrient requirements, the plant can adjust to conditions that are not its natural habitat.

It can be cultivated in pots or garden water features with about 2 to 3 inches of standing water. Typically, this sedge reaches a height of around 12 inches, but in some regions, it can grow up to 2 to 3 feet. It reproduces through both seeds and root expansion. The plant features angular, v-shaped leaves and clusters of white, cotton-like flowers on leafy stems. To prevent unwanted spreading, it is essential to remove the seeds before they mature and are dispersed by the wind, and to divide the plant's roots approximately every two years.

Cottongrasses are self-pollinating, as their flowers are "perfect," containing both male (stamen) and female (carpel) reproductive structures.