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Three-way Sedge

Dulichium arundinaceum

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Category
Grass / Sedge / Rush
Sun
Partial to Shade
Soil moisture
Wet to Medium-Wet
Bloom time
Jul–Oct

About Three-way Sedge

Three-way Sedge is a fascinating and highly architectural wetland plant that is a must-have for any water feature or rain garden. It is instantly recognizable by its unique 'three-way' growth habit: when viewed from above, the stiff, pointed leaves emerge from the stem in three distinct vertical rows, creating a perfect geometric pattern. Growing 1 to 3 feet tall in upright clumps, this sedge thrives in the saturated soils of marshes, pond edges, and bogs, and can even grow in shallow standing water. While its flowers are wind-pollinated and relatively inconspicuous, the plant provides essential habitat and cover for amphibians, dragonflies, and waterfowl. Native across much of North America, it prefers partial sun to shade and consistently wet conditions. Its vibrant green foliage remains attractive throughout the growing season, eventually turning a warm bronze in the fall. Whether used to stabilize a shoreline or to add a unique texture to a damp corner of the yard, Three-way Sedge is a dependable and visually striking choice for the native water garden.

Native range

Native to 42 states:

AlaskaAlabamaArkansasCaliforniaConnecticutD.C.DelawareFloridaGeorgiaIowaIdahoIllinoisIndianaKentuckyLouisianaMassachusettsMarylandMaineMichiganMinnesotaMissouriMississippiMontanaNorth CarolinaNebraskaNew HampshireNew JerseyNew YorkOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaTennesseeTexasVirginiaVermontWashingtonWisconsinWest VirginiaWyoming

County range map

BONAP county-level native range map for Dulichium arundinaceum

Range map courtesy of BONAP (Biota of North America Program).

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