Blue Angel Holly Ilex Zone 5; probably in most locations in zone 4 as well Habit and Formcan grow up to 12' or even 15' tall, but most plants reach a mature height of 8' form varies with the cultivar, but is either pyramidal or rounded branching is horizontal to irregular generally dense and shrubby Summer Foliage leaves evergreen very dark almost blue-green glossy margins with rather closely spaced teeth/spines 1.5" to 2.25" long 1 to 1.5" wide stems are bluish purple with green foliage turns slightly purple in the winter Flowers dioecious, with male and female plants small white flowers in late April and early May flowers are numerous, but not overwhelmingly ornamental male plants are slightly showier in bloom Fruit only produced by female plants bright red shiny fruit about 0.33" in diameter matures to red in the fall can be quite showy a male pollinator is needed nearby for peak fruit set (within about 300 feet) Culture grows best in full sun, but light shade is toleranted with more open growth resulting prefers moist, slightly acidic, well-drained soils, but it is relatively soil adaptable can be pruned to remove straying branches, although quite cold hardy, avoid very exposed windswept locations relatively carefree plant