ENH-759 Stewartia koreana: Korean Stewartia 1 Edward F. Gilman and Dennis G. Watson 2 1. This document is ENH-759, one of a series of the Environmental Horticulture Department, UF/IFAS Extension. Original publication date November 1993. Revised December 2006. Reviewed February 2014. Visit the EDIS website at http://edis.ifas.ufl.edu. 2. Edward F. Gilman, professor, Environmental Horticulture Department; and Dennis G. Watson, former associate professor, Agricultural Engineering Department, UF/IFAS Extension, Gainesville, FL 32611. The Institute of Food and Agricultural Sciences (IFAS) is an Equal Opportunity Institution authorized to provide research, educational information and other services only to individuals and institutions that function with non-discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions or affiliations. For more information on obtaining other UF/IFAS Extension publications, contact your county’s UF/IFAS Extension office. U.S. Department of Agriculture, UF/IFAS Extension Service, University of Florida, IFAS, Florida A & M University Cooperative Extension Program, and Boards of County Commissioners Cooperating. Nick T. Place, dean for UF/IFAS Extension. Introduction Capable of reaching 50 feet in height, Korean stewartia is most oſten seen at 20 to 30 feet, its short, interwoven branchlets forming a dense, pyramidal canopy which casts deep shade below this deciduous tree. e one to four-inch- long by one to three-inch-wide dark green leaves oſten turn to lovely shades of orange, red, or purple in the fall but this is not a reliable occurrence. Over a several week period in June to July, Korean stewartia is decorated with lovely, pure white, yellow-centered blossoms, three-inches-across and flattened, appearing much like a single camellia flower. Each flower is open for about 24 hours and they attract bees. Most other trees have finished flowering by the time these flowers emerge. e bark of Korean Stewartia is probably the most outstanding characteristic, with orange/ brown patches showing through the flaking, grey bark. General Information Scientific name: Stewartia koreana Pronunciation: stoo-AR-tee-uh kor-ee-AY-nuh Common name(s): Korean stewartia Family: eaceae USDA hardiness zones: 5B through 7B (Fig. 2) Origin: not native to North America Invasive potential: little invasive potential Uses: specimen; deck or patio; street without sidewalk; container or planter; espalier; parking lot island 100-200 sq ſt; parking lot island > 200 sq ſt; sidewalk cutout (tree pit); tree lawn 3-4 feet wide; tree lawn 4-6 feet wide; tree lawn > 6 ſt wide; highway median Availability: not native to North America Description Height: 20 to 30 feet Spread: 15 to 25 feet Crown uniformity: symmetrical Crown shape: upright/erect, pyramidal Crown density: dense Growth rate: slow Texture: medium Figure 1. Young Stewartia koreana: Korean stewartia