Two species, one native to the southeastern U.S. and the other to China, make up this genus of vigorous, woody, deciduous climbers. The brightly colored, trumpet-shaped flowers attract hummingbirds from late summer to autumn. Leaves are deeply cut. These fast-growing vines will grab a wall, fence, or tree with their aerial roots, and can quickly grow to 30 feet.
Noteworthy CharacteristicsTolerates poor soil. Trumpet- or funnel-shaped flowers that attract hummingbirds. Fast-growing. Suckers and self-seeds profusely.
CareTolerates any moderately fertile, moist but well-drained soil. Full sun is needed where half-hardy, but elsewhere they can take shade. Provide a large, sturdy support. Prune in late winter or early spring. Train the shoots until the aerial roots grab hold.
PropagationSow seed in containers in a cold frame in autumn. Graft or insert root cuttings in winter. Root leaf-bud cuttings in spring or semi-ripe cuttings in summer.
ProblemsProne to fungal leaf spots, powdery mildew, scale insects, mealybugs, and whiteflies.