Noteworthy Characteristics Viburnum lentago, commonly called nannyberry (wild raisin, sweet viburnum, sheepberry), is a large, upright, multi-stemmed, suckering, deciduous shrub which typically grows to 10-18 feet tall with a spread of 6-12 feet, but may also be grown as a small, single trunk tree that may reach a height of 30 feet. Native nannyberries have