Castle Wall® Blue Holly brings classic holly beauty with glossy, dark green leaves and seasonal berries. Flowers appear in late spring, adding welcome seasonal color to the landscape. It tops out at 5 to 8 feet tall with a 3 to 4 feet spread, making it a great fit for foundation beds, borders, and garden rooms. Plant in full sun for the best results. It thrives in zones 5 through 7. Expect visits from pollinators, butterflies, and birds throughout the growing season.