Yes, several Viburnum types can grow as small trees or be bought as standards, which are single-stemmed and reach 3 to 20 feet tall. Southern Living and The Spruce report this. Viburnum plicatum, known as doublefile viburnum, and Viburnum tinus are often picked for shaping into trees. For now, these options are most common in landscaping. At least in theory, they can be shaped to maintain a tree-like form.