The Big Blue Liriope, also known as Lilyturf, is a tough, clump-forming evergreen perennial that looks like a lush ornamental grass. It features arching, strap-like blades of deep green foliage that stay vibrant year-round. In late summer, it sends up striking spikes of tiny, bell-shaped lavender-blue flowers, which are followed by decorative black berries in the fall. Because it is incredibly resilient and spreads slowly without becoming invasive, it is the "go-to" choice for borders, erosion control on slopes, or as a uniform groundcover under large trees.