Winter hardy to USDA Zones 7-10. Best grown in organically rich, medium to wet, well-drained soils in full sun to part shade. Likes hot and humid summers and consistently moist soils.
In northern states, plant rhizomes in the ground in spring after last frost. Lift rhizomes in fall and store for winter in slightly moist vermiculite or peat in a cool, dry location. Also may be grown in containers or tubs which should be overwintered indoors in a cool, dry, frost-free location. Containers are best overwintered in greenhouses if available. Containers may be sunk into the ground at the periphery of a water garden or pond.
It is a rhizomatous tender perennial that typically grows 3-6’ tall. Features large, lance-shaped, medium green leaves (to 24” long x 5” wide).
Hardiness zone: 7 to 10
Height: 3 to 6 feet
Spread: 2 to 3 feet
Bloom Time: Seasonal bloomer
Sun: Full sun to part shade
Water: Medium to wet
Suggested Use: Annual
Flower: Showy, fragrant