Buxus sempervirens JoyBoxwood
科:黄杨科
Family:Buxaceae
属:黄杨属
common name:Boxwood
introduce:Plant Type: Broadleaf evergreen
Family: Buxaceae
Missouri Native: No
Native Range: None
Height: 3 to 6 feet
Spread: 3 to 5 feet
Bloom Time: April - May
Bloom Color: Greenish yellow
Sun: Full sun to part shade
Water: Medium moisture
Maintenance: Medium
General Culture:
Best grown in average, medium wet, well-drained soil in full sun to part shade. Prefers sun dappled part shade and moist, sandy loams. Tolerant of pruning and shearing. In USDA Zones 5 and 6, this boxwood is best sited in a sheltered location which protects it from winter winds. Avoid cultivating around plants because they have shallow roots. Roots appreciate a good mulch.
Noteworthy Characteristics:
This boxwood cultivar is a dense, compact, pyramidal to conical evergreen shrub with an open habit. Fast annual growth (to 5" per year). Typically grown as a 3-6 tall shrub with a somewhat larger spread. However, if not pruned, it may reach 10 tall by 8 wide in 25 years. Rarely flowers. Small, lanceolate, medium green leaves (to 3/4" long).
Boxwoods can be somewhat temperamental plants to grow in the St. Louis area where foliage tends to bronze (turn unattractive brownish yellow) in harsh winters, particularly if plants are located in open areas exposed to winter winds. Otherwise requires little special care other than annual pruning. No serious insect or disease problems. Some susceptibility to blight and leaf spot. Root rot can be a problem in poorly drained soils. Joy shows good resistance to the three main insect pests of boxwood (leaf miner, psyllids and mites).
Uses:
Best as a hedge or foundation plant. May be massed, grouped or used as a specimen or accent. Formal gardens or shrub borders.
