How can I create a natural hedge (3-4’ high) instead of building a fence?

A fence height hedge or screen can be created by combining sheared evergreen photinia shrubs with small deciduous crape myrtle trees.  Similar hedge shrubs are burning bush (winged euonymus "Rudy Haag"), Double Bridal Wreath, Japanese barberry, Japanese holly, Privet, Viburnum, Vitex, Wax Myrtle and Vernal Witchhazel.