Buxus harlandii aka Harland's Boxwood

Buxus harlandii, or Harland boxwood, is an evergreen shrub. It belongs to the boxwood family, Buxaceae. Its native range spans southern China, Hainan, Hong Kong, and Vietnam. It grows in woods and near streams in subtropical regions. Some North American plants sold under this name are misidentified. They are forms of Buxus microphylla, rather than this species.

This slow-growing shrub has many stems and a dense crown. Its rounded form can widen toward the top. Garden size varies between sources. Missouri Botanical Garden gives 2–3 feet (0.6–0.9 metres) tall and wide. It notes occasional heights of 5 feet (1.5 metres). NC State gives 4–6 feet (1.2–1.8 metres) in both dimensions. Young stems are green and square, then turn brown. Pale marks can add interest to the trunk. The glossy, leathery leaves grow in opposite pairs. Each has smooth edges and a notch at its tip.

Small, scented, pale yellow flowers open in April and May. Male flowers have stalks; female flowers lack them. The blooms offer scent rather than a bold display. Brown capsules follow, each less than an inch across. These small fruits add little to the plant's appearance. The evergreen leaves provide interest through winter. Garden uses include low hedges, borders, and foundation planting. It also suits bonsai, large pots, and use as a specimen. Its hard, fine-grained wood serves carving, turning, and small instrument work.

Grow it in sun or part shade with good drainage. It accepts clay, loam, and sand across a broad pH range. Even soil moisture suits it, though established plants withstand some drought. Sources place it in USDA zones 7–9. Cold limits its use, and exposed winter sites pose risks. Strong winds can dry the leaves and cause bronzing. Full sun can also increase winter bronzing. Shelter matters near the colder edge of its range. Mulch helps protect its shallow roots from disturbance. Prune after the last frost to protect tender new shoots. Annual thinning helps air move through the crown.

Leaf spot and boxwood blight can cause leaf loss and dieback. Wet, poorly drained soil can lead to root rot. Mites and leafminers may attack, despite reports of some pest resistance. Harsh winters can injure leaves and new growth. No food or medicinal uses are recorded by Plants For A Future. NC State reports poisonous alkaloids and risks to pets and horses. Dogs and cats may vomit or develop diarrhea after ingestion. Horses can suffer more severe effects.