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The Plant Guide

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Singleseed juniper

Juniperus squamata 'Blue Star'

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‘Blue Star’ jumiper is a slow-growing, compact, evergreen shrub with a mounding shape. Its silver blue foliage is attractive in all seasons, and its blue, berry-like, female cones each contain one seed, hence its common name.

Noteworthy CharacteristicsAdapted to a wide variety of soil types and even some drought, although it will not stand the heat and humidity of the deep South.

CareAverage, well-drained soil in full sun. No pruning is necessary.

PropagationJunipers in general are difficult to propagate from seed, so take ripe cuttings in late fall through winter and root in a humid cold frame. Alternatively, take softwood cuttings in summer and place under mist with bottom heat.

ProblemsLeaf miners, bark beetles, scale insects, aphids, mites, and caterpillars (especially bagworms) are common, while Phomopsis twig blight, Gymnosporangium rust, dieback and canker, lesion nematodes, brown felt blight, and a variety of heart and wood rots are very common in Junipers in general.

  • Genus : Juniperus
  • Plant Height : 1 to 3 feet
  • Plant Width : 1 to 3 feet
  • Zones : 4, 5, 6, 7, 8, 9
  • Moisture : Adaptable
  • Tolerance : Drought Tolerant
  • Light : Full Sun
  • Uses : Ground Covers
  • Maintenance : Low
  • Foliage Color : Purple/Burgundy
  • Characteristics : Showy Foliage, Showy Fruit
  • Plant Type : Shrubs
  • Growth Rate : Slow
  • Plant Seasonal Interest : Spring Interest
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Comments

  1. ritakraniak 05/26/2015

    Can I plant blue star junipers on a shallow garden wall? How deep do they have to be planted?

  2. bradmedic 06/03/2015

    In general, ( If I'm right, if anyone else knows better please correct me) Trees ,shrubs and especially evergreen species tend to grow roots out past the canopy to gather moisture, so if blue stars grow 1-2 Meters wide that should be the rule. I may be wrong, and if you hand water often they may be fine in a smaller area.

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