Prunus serrula Japanese Flowering Cherry 'Shirotae' ('Mt. Fuji') Size: 15' high by 20' or greater. Hardiness: Zone 5 to 7. Habit: Pink in bud, open to white, fragrant, semi-double, 2" wide, produced early; leaves pale green with a slight bronze tinge in youth; spreading habit, often slightly pendulous. Rate: Medium. Culture: Sun or partial shade.