Castle Wall is a compact pyramidal Holly bush with glossy blue-green leaves that give off a lustrous shine-year-round and is often planted along borders as a formal privacy hedge. No pruning is necessary for this Holly to attain its symmetrical pyramidal shape. The definition of low-maintenance, Castle Wall only requires the occasional bi-weekly watering after its first-year of becoming established. Castle Wall is a male holly that is known for its exceptional pollinating capabilities of other nearby Holly cultivars, such as Blue Princess and Dragon Lady. With Castle Wall planted nearby, these female cultivars will produce a noticeably increased abundance of bright red berries that add a pop of color, as well as attract birds, through the winter. The Castle Wall Blue Holly bush lives most comfortably in USDA Cold Hardiness Zones 5-8 and reaches a height of 8 ft. and width of 4 ft.
- Compact blue holly
- Works well for formal hedge or border plantings
- Glossy blue-green leaves
- Excellent pollinator of other holly shrubs