Pure orange, tubular flowers are continuously produced during warm summer weather on this nonhardy, evergreen shrub from Central America. Winter hardy in USDA zones 7 and warmer, it is used as an annual in Chicago-area gardens. Full sun in the hottest microclimates available in your garden and average soils are keys to success in the Upper Midwest. Once the plant is rooted in, you will need water only during extended droughts. It's insect and disease resistant, and is difficult to overwinter indoors because of the full sun and warm temperature requirements. Butterflies, moths, and hummingbirds are drawn to the fragrant flowers.