Clerodendrum is a very large genus of 400 or so trees, shrubs, and vines from the subtropical and tropical woodlands of Africa and Asia. Their eye-catching flowers are the main garden attraction. Grow the shrubs in a border, the trees as specimens, and train the climbers on a trellis or archway. They may also be grown in a greenhouse.
Noteworthy CharacteristicsShowy, sometimes fragrant, flowers.
CareIn the garden, grow in full sun and fertile, humusy, moist but well-drained soil. In the greenhouse, grow in full light in a well-ventilated spot. Protect from hot sun. Water sparingly in winter.
PropagationStart seed indoors in spring at 55 to 64°F. May also be propagated from root cuttings in winter, semi-ripe cuttings in summer, or from suckers in spring or fall.
ProblemsCommonly bothered by whiteflies, mealybugs, and aphids. Galls, cankers, and leaf spots occur less often.