Spreads aggressively about 2 feet per year by underground rhizomes.
 
It grows in wet meadows and marshes, wetlands, prairies, and savannas, sloughs, and along the shores of rivers and lakes. It is considered salt-tolerant.
 
WATERING should be done thoroughly, keeping plants constantly moist but not overwhelmingly wet. Never let the soil surface dry out completely, as dryness or drought is the major cause of death of a sweetgrass patch. The leaves will curl when the soil is getting excessively dry, and if still green, can revive with a thorough watering.