Blue rug juniper

Juniperus horizontalis 'Wiltonii'

Photo/Illustration: 
Virginia Small
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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

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