The cork bush is a wonderful and unusual small tree, reaching height of only 8-10 feet. Originating in Africa, it is rare-in-the-trade here in the United States. It has small purple clusters of flowers that can be viewed from spring until summer, some even say October through January as well. The cork bush gets its name from its corky bark, and has very unique leaves with a shimmery silver backing. This little tree is quite cold tolerant, resisting temperatures with frost as low as 10 degrees. (zones 8-11)