Thuja occidentalis 'Mr. Bowling Ball' / Mr. Bowling Ball™ arborvitae|American Nurseryman magazine - 12/15/97

The correct botanical name of this cultivar is Thuja occidentalis 'Linesville,' but the more colorful name Mr. Bowling Ball™ was attached to it for marketing purposes and it has crept into the nomenclature — although purists resist it. Because it's an Eastern Arborvitae it has all the generous cultural characteristics of the species plus a unique, nearly perfect round shape that requires no pruning and will stay dwarf, perhaps 30 inches (75 cm) at maturity. It also maintains its shape to the ground giving the appearance of a sphere sitting on the landscape.

This cultivar originated as a witch's broom found in the mid-1980s by ACS legend Joe Stupka, a nurseryman and propagator from Pulaski, Pennsylvania. He found the original broom in the Linesville Cemetery, Linesville, Pennsylvania. According to an article in American Nurseryman, when Joe found the original broom it was mostly dead with only a few twigs still alive. Because there was so little scion wood, Stupka grafted it and mounded peat moss up to the graft union. He later found the scion rooted above the graft in the peat moss. From this rooted cutting, all future plants were then propagated. Today this plant roots readily from cuttings.

Stupka called the cultivar 'Linesville' but under unknown circumstances, Joe Zampini of Lake County Nursery, Perry, Ohio, adopted the plant giving it the cultivar name, 'Bobazam' and later registered it under the trademark name of Mr. Bowling Ball™. In later years it has been licensed to others who called it Mr. Bowling Ball, a name that has been more effective in the marketplace.

See also, Thuja occidentalis 'Linesville.'

Thuja occidentalis 'Linesville' / Mr. Bowling Ball™, photographed in Brunswick, Maine in 2013.
Photo by Sean Callahan



What is the best high sun dwarf conifer that deer wont eat .?

Maxwell Cohn

no conifer is any more toxic than another. Deer are an extremely local issue. If they're starving in your area, all plants are fair game.


does this change color in the winter like 'Fire Chief'?

Maxwell Cohn

not to the same degree, but it'll bronze a bit in colder climates.


Ok, that's what happening to it. I was afraid it was dying, or it was changing like fire chief

Web Editor

Denise even here in my mild 9b I get a bit of bronzing on it.