This white flower is Magnolia Stelata. Magnolia Stelata is also called Star Magnolia and has flowers in early spring before leaves. The flowers have fragrant smell even though it is not so strong. The sizes of flowers are about 7 to 10cm (3 to 4 inches) and are beautiful on bear branches. Magnolia Stelata is a shrub and grows 6m (20 feet) height and 4.5m (15 feet) width even though the growth speed is slow.