This aquatic, deciduous perennial from the southeast of North
America grows to 6 ft (1.8 m) in height with a spread of 24 in (60
cm) or more.
It carries leaves that are broadly elliptical to lanceolate, and
have a mealy whitish coating.
Its stems are erect and unbranching.
The flowers, which occur in tall spikes, are violet and waxy, their
6 petals forming a narrow tube; they are borne in summer and are
followed by decorative seed heads.
Flowering colors: Violet
Cultivation: Grow these plants in baskets of fertile, loamy soil or
in deep, humus-rich mud in up to 20 in (50 cm) of water and in full
sun; some species tolerate cool water. Pick off spent foliage.
Propagate from seed or by division in spring.