Bluejoint grass is a clump-forming upright ornamental grass native to northern North America, especially the marshes, swamps, and river margins. It is very fast growing and can reach a height of 6 feet and a width of 2 feet. Bluejoint is a cool season grass with bright green leaves, and its reddish-brown flowers are visible in late spring to early summer.

Bluejoint grass is tolerant of a wide range of conditions but prefers moist, brackish soils and full to part sun. In these conditions it can become aggressive. This plant is most suited to massed planting where its form and shimmering flower heads can create a beautiful vista. The plant is usually retained for winter interest and cut back in late winter and can also be divided at this time if necessary.