This is a bushy deciduous, sometimes semi-evergreen shrub that works really well as topiary and clipped standard tree, like these half standards, a stem of approx 90-120cm with a round head, a little like a lollipop.  Leaves are dark green, ovate, oval or oblong, to 2 inches long. White flowers are held in panicles, to 2 inches long, followed by small, round, blue-black fruit. Clip twice in summer.