Common Rush (Juncus effusus) has green blooms from early to mid-summer. Their semi-evergreen foliage adds winter interest. They prefer wet soils in sun to part sun where they can grow to 3 feet tall. They can tolerate short periods of up to 12 inches of standing water, making them great for planting in wet basins. Companion plants include Southern Blue Flag Iris (Iris virginica var. shrevei) and White Turtlehead (Chelone glabra).
Shear dead foliage to 4 inches in early spring. Deadheading in late summer can prevent self-seeding if desired.