Sweet grass is a bunch grass forming clumps 2 feet tall spreading up to 3 feet wide. The semi-erect gray-green blades develop yellow flowers in the middle of summer. Small seeds form inside bronze-colored spikes. This wild grass spreads by creeping rhizomes. This grass will fill in an area in two years when planted 3 feet apart. Native Americans found many uses for sweet grass. Throughout history, they braided dried stems of sweet grass using them as incense and smudges for religious ceremonies including purification rites.