Bluejoint Grass grows two to five feet tall, forming graceful, arching clumps topped with feathery, purplish seed heads in summer. It is a cool-season grass, meaning it will grow to full size in the spring and flower early summer making it a perfect companion for early season blooming forbs.

Thriving in full sun to light shade, it prefers moist to wet soils, but can handle the occasional seasonal drying. Once established, it spreads gradually by rhizomes, making it an excellent choice for naturalistic plantings.

A well-mannered spreader, Bluejoint Grass fills in open spaces without overwhelming other plants. Its airy seed heads and upright form add vertical interest to rain gardens, streambanks, or wet meadows.

Found across North America, from boreal forests to wetlands and moist prairies, it thrives in cool damp environments.

In spring, fresh green blades emerge early, followed by tall flowering stems in summer than turn golden brown as they mature. By fall and winter, foliage and seed heads have faded but height persists adding structure to the landscape and providing shelter for wildlife.

Bluejoint Grass provides nesting materials and habitat for birds while also serving as a host plant for various skipper butterflies. Its dense root system helps control erosion, making it an important species for wetland restoration.