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 Botanic Garden >> Gardening >  >> Question and Answer >> Landscaping and Design

Blue Rug Juniper Longevity and Cultivar Selection for Bank Coverage

Blue Rug juniper (Juniperus horizontalis 'Wiltonii') lifespan and alternative prostrate junipers for hillside coverage.

Lifespan Expectations

  • Typical managed landscape: 25+ years
  • Potential maximum: 75+ years (juniper genus includes 1,500+ year specimens)
  • Aging characteristic: Can become "leggy" (open center) without pruning

Prostrate Juniper Cultivar Comparison

Selection Factors

  • Climate adaptation (salt/heat/cold)
  • Desired height/texture
  • Growth rate vs. maintenance
  • Winter color interest

Over 100 juniper cultivars exist—match to your specific site conditions.

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Juniperus horizontalis 'Wiltonii': Blue Rug Juniper for Groundcover and Erosion Control
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Pruning Blue Junipers: Mid-Late April, Leave Green Foliage
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CultivarHeightSpreadSpecial Traits
J. conferta 'Blue Pacific'12-18"6-8'Salt/heat tolerant, blue-green
J. conferta 'Emerald Sea'12-18"6-8'Salt tolerant, bright green
J. horizontalis 'Bar Harbor'12-18"8'Feathery blue-gray, plum winter, fast, salt spray tolerant
J. horizontalis 'Pancake'2"2'Extremely low, tight
J. horizontalis 'Plumosa'2'10'Andorra type, grey-green, plum winter
J. horizontalis 'Wiltonii' (Blue Rug)4"8-10'Silver-blue, classic