The Blue Muffin® Arrowwood Viburnum is a more compact, manageable version of the traditional Arrowwood, making it a favorite for residential landscapes where space might be limited. Its namesake feature is the cluster of vibrant, pea-sized blue berries that appear in late summer. They are almost neon in color and are a magnet for songbirds. It features glossy green, heavily veined leaves and flat-topped clusters of white flowers in late spring.