Winter hardy to USDA Zones 10-12. In the St. Louis area, it is grown as an annual, container plant or houseplant. In the garden, it is best grown in average, medium moisture, well-drained soils in full sun. Tolerates part shade. It is easily grown from seed started indoors 10-12 weeks before last spring frost date. It tolerates high summer heat. It also tolerates some drought, but performs best with regular moisture. Plants can become leggy as the growing season progresses, in which case stem tips may be pinched as needed to maintain good plant form. If grown in containers, plants may be overwintered indoors in bright, sunny locations with temperatures in the 60s and reduced watering. Plants may be propagated from tip cuttings in the fall for overwintering. It is generally best to start new plants each year.