Holly, Blue Prince HollyBlue Prince Holly is a tall broadleaf evergreen shrub and an upright habit with dark blue green toothed leaves and purple stems. This male cultivar does not produce berries, but acts as a pollinator. Best planted in moist, slightly acidic well drained soils. Hollies are dioecious and need both male and female plants to produce fruit. Type: Shrub Origins: I. aquifolium x I. rugosa Hybrid Height: 8' 12' Spread: 8 12' Spacing: 10 USDA Hardiness Zone: 5 9