Ornamental grass refers to grass species that are grown primarily for decorative purposes rather than for use as turf or forage. These grasses add texture, movement, and interest to gardens and landscapes, often featuring unique colors, heights, and seed heads. Popular ornamental grasses include fountain grass, switchgrass, and pampas grass. They are often low-maintenance, drought-tolerant, and can serve as focal points, ground covers, or backdrop plantings in landscape design.