This is the very popular "Silver Birch".
A tall, deciduous graceful tree with the outer branches have a slightly pendulous habit.
Known for its white trunk, the bark is brown when young but gradually develops the silvery-white papery-bark when mature.
Best in full sun, but will tolerate part shade.
Prefers moist, but well drained soil.
The light shade that it creates forms a perfect area for growing azaleas, etc.