Cup-and-saucer vine is a fragrant flowering vine in the phlox family. This fast-growing climber made a strong impression on Charles Darwin, who studied the vine in 1875. Perennial in sub-tropical zones 9, 10, and 11, it is grown as an annual in all other zones. It can be trained on a trellis and may reach 24'. Also called "cathedral bells" and "Mexican vine," its common name comes from the sweet flowers and foliage that resemble a cup and saucer in full bloom. Fragrant and colorful, adds whimsy and charm to an old-fashioned garden. Full sun.