Easily grown in average, medium moisture, well-drained soils in full sun. Plants prefer organically rich, moist soils that drain well, but tolerate some dry soils and drought once established. Plants also generally tolerate heat, humidity and poor soils. Plants may perform poorly in heavy clay soils. Remove spent flowers to encourage additional bloom and tidy the planting. If flowering declines in summer, consider cutting back plants to encourage a fall bloom. ‘Oranges and Lemons’ is a sterile cultivar.