Viburnum x pragense 'Decker'
The Missouri Botanical Garden informs us that: "This hybrid viburnum (cross between V. rhytidophyllum and V. utile) is an evergreen, multi-stemmed shrub that typically grows 8-12' tall with a similar spread. Flat cymes (to 6" across) of slightly fragrant, creamy white flowers in spring gives way to berries in early fall which first appear red and then change to glossy black. Berries will often persist to the end of December. Elliptic, dark green leaves (to 4" long). Foliage is evergreen in the south, and usually evergreen in the north unless injured by cold winter temperatures." The variety 'Decker' introduced by Decker Nursery in Ohio was considered to be more cold hardy.
USDA Hardiness Zone 5 - 8