Annual. (Perennial in zones 9-11.) This quick-growing vine has 2″ cup-shaped flowers that open a beautiful pale green and mature to ivory or deep purple. Sow near arbors, fences, pergolas, or trellises for a quick privacy screen and sweetly scented air. May also be grown in a container. Pinch back tips to encourage branching and achieve desired height. Pest and disease resistant. Commonly grown as an annual, vines can reach 25′ in a single season. In zones 9-11, plants are perennial and can eventually reach 70′.