Juncus militaris, commonly known as Bayonet Rush, is a perennial herb native to wet meadows, marshes, and the edges of ponds and streams in the Northeastern USA and Eastern Canada. It is semi-evergreen, depending on the climate, and typically grows to a height and width of 2-4 feet (0.6-1.2 meters). The plant features upright, cylindrical, green stems that resemble bayonets, hence the common name. It produces small, brownish flowers in the summer, which are not particularly showy but add texture to the landscape.

Bayonet Rush is valued for its vertical form and textural interest in water gardens, rain gardens, and naturalized areas. It is an excellent choice for erosion control along water edges and is often used in wetland restoration projects. This plant thrives in full sun to part shade and requires consistently moist to wet soils, often growing in shallow water. It is adaptable to a variety of wet soil types, including clay, but requires good aeration to prevent root rot. While it is generally low-maintenance, it can spread in ideal conditions and may need to be managed to prevent unwanted colonization.CC BY-SA 4.0