Shrub Viburnum trilobum 'Compactum' [Dwarf American Cranberrybush Viburnum] 'Compactum' is a dense, dwarf cultivar that attains a height of 5-6 feet, about half that of the straight species. Excellent bloomer and fruiter. Widely tolerant of soils and microclimates. May be troubled by aphids. Drought resistance is not good. Fruits are used in preserves.