Grass, Big Blue Lily TurfBig Blue Lily Turf is an attractive arching evergreen perennial that grows in tufts and is often used for groundcover or turf replacement. The pale blue flowers grow in abundance on short stalks above the grass like green foliage in summer and followed by small clusters of black berries. Best in part sun and well drained soil. To learn more about the Big Blue Lily Turf read this blog post. Type: Perennial Height: 1' 1. 5' Spread: 1 1. 5' Spacing: 1.