The genus Magnolia is comprised of two subgenera Magnolia and Yulania. Magnolia subgenera contain the American evergreen species Magnolia grandiflora. Yulania comprises the Asiatic species of Magnolia which deciduous.
Magnolias like full sun to partial shade. They grow in clay, loam, or sand soils but do better in well-drained soil. There are more than 200 species of Magnolia. Magnolia wood bark is easily damaged.