Ophiopogon japonicus
A clumping, grasslike evergreen perennial that forms low tufts of arching dark green foliage 6 to 12 inches tall, spreading slowly by underground stolons into a dense, uniform turf over time. It is adaptable and durable, growing in partial to full shade as well as morning sun, and prefers regular to moderate water in well-drained soil once established. Small spikes of pale lilac to white flowers appear among the blades in summer, followed by blue-black berries, though the plant is grown chiefly for its fine evergreen texture. Use it as a no-mow lawn substitute, for mass shade plantings, edging along walks and borders, between stepping stones, and to underplant trees and shrubs where a soft, even carpet is wanted.