Kauai Rose flowers (Torenia fournieri): Torenia fournieri, the bluewings or wishbone flower, is an annual plant in the Linderniaceae, with blue, white, or pink flowers that have yellow markings. It is typically grown as a landscape annual, reaching 12–15 in. tall. It has simple opposite or subopposite leaves with serrated edges. Annual best grown in consistently moist, organically rich, well-drained soils in part shade to full shade. Although sometimes classified as a warm weather annual, this species of Torenia is not terribly fond of hot and humid summer weather.