Best grown in standing water (up to 12? deep) or in wet soils in full sun. Tolerates very light shade. In large water gardens, it may be grown in submerged containers. May also be planted in the mud at the margins of ponds or streams or in bog gardens. Clumps may be divided in spring. Naturalizes by creeping rhizomes, and, if left undisturbed in optimum growing conditions, will spread to form colonies.