Sweet Grass is an aromatic, cool-season perennial growing 10-24 inches in height – and spreading about 2 feet per year by underground rhizomes. Because of its aggressive, rhizomatous nature it can be difficult to eliminate if it has spread to areas where it is not wanted. Pick a planting site with this in mind. Its natural habitat is wetlands, prairies, and savannas in wet to medium moisture soils. Though Sweet Grass prefers rich, moist soils, it will grow in almost any soil that receives a minimum of a half day of sun. Sandy, well-drained sites will require mulch and watering during times of low rainfall. Add compost to sand or clay soils. The preferred pH range is 6 to 8.
Many North American indigenous cultures burned Sweet Grass in ceremonies to invite the presence of good spirits.