American boxwood? English boxwood? Japanese boxwood? What’s the difference?!
American boxwood, Buxus sempervirens, has many different cultivars. For example- Graham Blandy (Buxus sempervirens ‘Graham Blandy’) is an American boxwood variety. Most American boxwood cultivars are cold tolerant, with leaves that are rather long ovals with more pointed tips.
English boxwood, Buxus sempervirens ‘Suffruticosa’, is a dwarf boxwood and is technically a form of American boxwood. It is a dense variety with more oval leaves.
Japanese boxwoods, Buxus microphylla japonica, are very adaptable. Wintergreen boxwood (Buxus microphylla japonica ‘Wintergreen’) is an example of a Japanese boxwood. Japanese boxwoods are typically very heat tolerant.