Winter hardy to USDA Zone 10-11 where it is easily grown in humusy, medium moisture, well-drained soils in part shade. Best performance occurs in light shade or sun dappled areas, with regular and even moisture. In full sun, plants tend to remain compact. Avoid poorly drained clay soils. Plants are intolerant of frost. Trim off new stem tips regularly to retain compact shape and to encourage branching. Remove flower spikes after bloom. In zones 9 and lower, this plant may be grown in containers as a houseplant in bright, mostly sunny exposures. Containers may be taken outside in summer but must be overwintered indoors. This plant is also commonly grown as an annual where it can be incorporated into mixed containers and hanging baskets. It is a low-maintenance plant that is easily propagated by cuttings, and is often shared with other gardeners by cuttings.
