From Proven Winners:

Native alternative to boxwood.

Love boxwood but struggle with disease or winter damage? Plant Strongbox® inkberry holly instead. This native evergreen naturally grows as a broadly rounded mound, and keeps its leaves all the way to the ground for the lush, dense look you love. It can be pruned or shaped as you desire, or left to attain its neat natural shape. It's also much faster growing than boxwood, and offers good deer resistance, too. Available in better garden centers in spring 2019.

Top reasons to grow Strongbox® inkberry holly:

Native to North America.
Naturally mounded shape and evergreen.
Resistant to disease, pests, and winter burn.

Foliage Interest
Winter Interest
Native to North America
Grows to 24-36" tall and wide in sun to part sun