Winged loosestrife is a native perennial that should not be confused with invasive purple loosestrife (Lythrum salicaria). It produces delicate spikes of pink to purple flowers from mid to late summer. The stems often have wing-like ridges, giving the plant its common name. It naturally grows in wet meadows, marsh edges, stream banks, and moist prairies. It prefers full sun and moist soils but can adapt to average garden conditions. It is a good alternative for gardeners concerned about invasive purple loosestrife. It prefers moisture but tolerates average conditions once established. It benefits from being planted in groups.