The Green Liriope is a rough and tumble ground cover. Deep green, grass like, strap-shaped leaves are produced in tufts and are quite showy. Spikes of violet to mauve bell-shaped flowers appear in late summer. These plants are also great for edging and a low accent for borders. The Liriope doesn’t mind competition from tree roots. A hardy and dependable perennial, the Green Liriope is happy in sun or shade, helps to combat erosion and is tolerant to drought, heavy shade and humidity.