Deciduous, perennial, grass-like sedge
Description: Tall, iris-like, sword-shaped leaf blades in basal clumps; foliage and rhizomes are sweetly fragrant; forms an unusual, club-like inflorescence in late spring
Habit: Erect foliage grows to 2½’ high and 2’ wide
Culture: Prefers full sun to part shade, medium to wet soil; can naturalize in water gardens
Hardiness: Cold hardy to USDA Zone 4
Early settlers introduced this Eurasian native to North America by the 1600s and, although the species has naturalized throughout much of the United States, it is not an aggressive spreader. Sweet flag has a long history of medicinal use for a variety of ailments and the essential oils extracted from the rhizomes were used in the perfume industry. It is a handsome and useful landscape plant along edges of ponds and wetlands.