Boxwood, BetterBoxwood® Heritage™ BoxwoodHeritage Boxwood is a compact evergreen shrub that forms a tidy upright mound of rich dark green leaves that holds its color well in winter. Small clusters of green cream flowers bloom in spring. Prefers part shade and well drained soils, as it is prone to burning if planted in full sun. Drought tolerant once established. The BetterBoxwood series is blight resistant. Type: Shrub Height: 3 4 Spread: 2 3 Spacing: 2. 5 USDA Hardiness Zone: 5 9 Culture: