Glenna Partridge Garden Design @barnhartgallery....Today in my nurseries plant travels I found the cultivar that you call "Mr. Bowling Ball"! It's not a Boxwood (Buxus) it's in the Arborvitae family. The latin name is Thuja occidentalis 'Bobazam' (Common name : Mr. Bowling Ball). Here's a link http://www.soonerplantfarm.com/index.cfm/fuseaction/plants.plantDetail/plant_id/1093/index.htm. I really do think that in the photo the leaves look more boxwood to me. "Mr. Bowling Ball" has a different texture to it that what I see in the photo but that would be a similar globe shaped shrub.

pursue These are boxwoods, not arborvitae. I like boxwoods because the deer do not ever eat them! English boxwoods keep their shapes without trimming. However, you can trim them to keep them a certain size. I clip branches out of the bush so the light gets to the middle of the bush. Sheared boxwoods sometimes decline. I clip at Christmas time to create beautiful wreaths and garlands.