Perennial Grass: A short-lived grass forming loose clumps with a sweet vanilla and dried hay scent. Border, lawn grass, meadow, container & house plant. The blades contain the vanilla scent coumarin, the scent & flavor are released when the blades are dried. Use in crafts, flower arrangements, potpourri, sachets & medicinally. Blooms: spring-summer. Color: white. Ht: 1-2 ft. Width: 1-2 ft. Exposure: sun/part shade. Water: moderate/moist. USDA Z4.