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Enter the approximate length and width of the area you will be planting and click 'Calculate' to determine how many Juniperus horizontalis 'Wiltonii' you will need.

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*Correct and successful spacing is complex and depends on project conditions.

Juniperus horizontalis 'Wiltonii'

Blue Rug Juniper

Blue Rug Juniper is a trailing, low growing, very prostrate, evergreen conifer.  Silver-blue foliage - ½" needle like leaves densely cover branches that spread 5'-6' wide.  Foliage takes on a purplish tinge in the Winter.  With a low, flat growing nature, Juniperus h. 'Blue Rug' makes a good groundcover for full sun slopes.  It needs well drained soil with average to medium moisture while getting established.  Drought tolerant once established.  Thrives in sandy soil and very tolerant of sea salt and wind.  Adjust to most any soil type as long as it has good drainage.  Birds are attracted to the bluish berry-like cone in the Fall.  Mature height 4"-6", spread 6'-8'

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  • Full Sun
  • Evergreen shrub
  • Thick, dense silvery blue foliage
  • Great in rock gardens or spilling over walls
  • Very low-growing with trailing branches
  • Use as a ground cover or for mass plantings

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Critter Resistance
Deer Resistant
Exposure
Full Sun
Foliage Color
Blue
Habit
Spreading
Trailing
Season of Interest (Foliage)
Fall
Spring
Summer
Winter
Soil Moisture
Average Water
Dry Soil
Well Drained Soil
Growing & Maintenance Tips for Juniperus horizontalis 'Wiltonii'

'Wiltoni' (also known as 'Wiltonii' and 'Blue Rug') - This is perhaps the standard against which all other low, prostrate junipers are to be judged. It forms a dense mat of blue foliage 4"-6" high and up to 5' wide. The foliage turns slightly purple in winter exposure. This plant has proven very useful when used as a groundcover or bank planting. It was originally found on Vinalhaven Island in Penobscot Bay, Maine and introduced by South Wilton Nurseries, Wilton, CT. It is very salt and wind tolerant.  Univ. of Connecticut