Blue rug juniper (Juniperus horizontalis 'Wiltonii') joo-NIP-er-us hor-ih-zon-TAL-iss Genus:  Juniperus This creeping shrub has a prostrate form and dense, steely blue foliage. The mature height is 1 foot tall. Scale-like green leaves turn a dull purple in winter. Blue rug juniper creates a flat ground cover. It grows 6 to 12 inches per year and bears ovoid dark blue fruit. Noteworthy Characteristics:  Excellent in a rock garden or on banks to prevent erosion. Care:  Grows well in well-drained soil and tolerates a wide variety of types of soils and conditions. Propagation:  Take ripe cuttings in late autumn through winter and root in a humid cold frame. Or take softwood cuttings in summer under mist with bottom heat. Problems:  Leaf miners, bark beetles, scale insects, aphids, mites, and caterpillars. Phomopsis twig blight, Gymnosporangium (cedar-apple) rust, dieback and canker, lesion nematodes, brown felt blight, and various heart and wood rots.

Overview

Height 1 ft. to 3 ft. Spread 6 ft. to 10 ft. Growth Habit Spreads Light Full Sun to Part Shade Moisture Dry to Medium Characteristics Showy Foliage, Showy Fruit Foliage Color Evergreen Uses Beds and Borders, Ground Covers, Specimen Plant/Focal Point Style Rock Garden Seasonal Interest Winter Interest Type Shrubs