Buxus sempervirens ‘Elegantissima’ (syn. ‘Silver Variegated’) – This variegated form of English boxwood is an RHS Award of Garden Merit winner and features green foliage with creamy-white margins. Even though it makes a dense hedge, ‘Elegantissima’ is more commonly seen as an accent shrub or container specimen. Grows 5′ high by 4′ wide. Hardy to zone 5.
Buxus sempervirens ‘Suffruticosa’ – Unfortunately there is a lot of fake True-Dwarf boxwood out there, so check for the small green leaves and congested growth habit when purchasing plants. These make ideal miniature hedges which can be maintained at 1-2′ high – that being said, ‘Suffruticosa’ can reach heights of 6′ tall if left untrimmed for many years. Hardy to zone 5.
Buxus sempervirens ‘King Midas’ – A beautiful cultivar of Golden English boxwood with bright yellow new growth that holds it colour quite well. While ‘King Midas’ is sun tolerant here on the coast, it might be best planted in part sun to avoid any risk of scorch in other areas. A beautiful contrast to use in and around burgundy shrubs. Grows 3′ tall and hardy to zone 6.
Buxus x ‘Green Velvet’ – A standard boxwood much favoured for holding its dark green colour all year round (may bronze slightly in full sun). This cultivar has a rounded growth habit and is relatively slow growing, so it is a good choice for smaller hedges. ‘Green Velvet’ is also rarely nibbled by the deer. This boxwood grows 3 to 4′ high and is hardy to zone 5.
Buxus microphylla ‘Golden Triumph’ – This newer cultivar of boxwood is so beautiful that many gardeners are using it in containers by the front doors where they can enjoy the evergreen display. The glossy fine-textured foliage is bright green with sharply contrasting gold margins and it is equally attractive when grown as a hedge. Grows 3′ tall and wide. Hardy to zone 5.