Botanical profile

Juniperus horizontalis 'Wiltonii'

Latin name
Juniperus horizontalis 'Wiltonii'
Common name
Creeping juniper 'Wiltonii'
Type
Coniferous
Family
Cupressaceae

Juniperus horizontalis ‘Wiltonii’, often called ‘Blue Rug’ creeping juniper, is a highly prized groundcover conifer known for its brilliant silvery-blue foliage and exceptionally dense, prostrate habit. This variety is distinguished by its strictly horizontal growth, forming an even plant mat ideal for stabilizing embankments, covering large areas, adorning rockeries, and structuring sunny flowerbeds. Its evergreen foliage, finely textured and hugging the ground, maintains a strong bluish tint all year round, potentially taking on a slight purplish hue in winter. Very hardy, drought-tolerant once established, and undemanding regarding soil type, ‘Wiltonii’ is perfectly suited for northern gardens and sustainable landscaping. Its density, longevity, and minimal maintenance make it a reliable choice for challenging areas requiring a robust and decorative groundcover.

Care guide

Growing conditions

Light, soil, water and hardiness

Hardiness zone
Zone 2
Exposure
Sun
Watering
Moderate watering
Fertilization
Slow-release fertilizer in spring. Fertilize monthly or as directed on the bag. Not recommended – use Bionik rooter or bone meal.
Soil type
Neutral to slightly acidic, dry to well-drained
Minimum temperature
'-40°C
Plant appearance

Blooming, foliage and shape

Blooming period
Not significant
Flower color
Non-ornamental
Fruiting
Decorative blue-grey berries
Foliage color
Blue-green
Foliage type
Persistent
Shape
Ground cover
Garden structure

Size and growth

Height
20 cm (0.65 ft)
Width
2 m (6.5 ft)
Growth rate
fast
Pet friendly
Safe for pets

Pets

Deer
Less attractive or generally tolerated by deer

Deer

The availability of our plants varies depending on arrivals, seasons, nursery production and supplier availability. Some varieties may be offered for a limited time only, depending on their natural cycle or current stock. These plant profiles are designed to guide and inspire you when choosing plants for the garden, landscaping projects, containers or long-lasting outdoor arrangements.