An eastern US viburnum that has been introduced in the Chicago area. Blooms in May with clusters of white flowers. Like most viburnums, it needs only a few hours of sun to do well. However, it will grow in full sun on good garden soil. Fruit is blue and devour ... ed by birds during fall migration. Fall color is maroon-red. Arrowwood can get leggy, but this can be prevented if it is pruned to the ground every couple of years.