I think one of the best border viburnums would have to be either the European or the American Cranberrybush Viburnum. They develop a thick, dense, upright habit of growth to 10 or 12 feet and fill in quickly to form a screen. In the spring they produce attractive white flowers. During the summer their medium-sized lobed leaves are a deep green before turning a bright crimson in fall. As the common name suggests, the fruit is cranberry-sized, bright red, and edible by both humans and birds.
Fruit persists late into fall.
The European Cranberry Bush Viburnum is also available is a more compact or dwarf form that produces quality flowers and fruit at an early age. These can be used to advantage in front of taller types to create a full border from the soil line to the top of the plants in the background. Robert Nuss is a horticulturist at Penn State. He coordinates all extension horticulture programs. He has bachelor's, master's, and doctoral degrees in ornamental horticulture and has been on the Penn State faculty since 1966.