Juniperus horizontalis ‘Wiltonii,’ commonly known as Blue Rug Juniper, is a low-growing evergreen shrub that forms a dense, spreading carpet of striking blue-gray foliage. It typically reaches a height of 6-12 inches (15-30 cm) and can spread up to 6-8 feet (1.8-2.4 meters), making it an excellent choice for ground cover or erosion control. ‘Wiltonii’ thrives in full sun and well-drained soil, making it a hardy and low-maintenance addition to gardens and landscapes.