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Juniperus scopulorum

Image of Juniperus scopulorum

Plant Family

Cupressaceae

Plant Botanical Name

Juniperus scopulorum

Photo by: GERALD L. KLINGAMAN

Plant Common Name

Rocky Mountain Juniper

Special Notice

This entry has yet to be reviewed and approved by L2G editors.

General Description

Tough as the rugged American West, this juniper is the parent of many varieties that share its resilient nature in the face of adverse conditions. It is a slow growing evergreen tree native to a huge range from Mexico north to Canada, concentrated primarily in the Rocky Mountain states and intermountain West. It is most often found on rocky soils lower elevation of foothills. Fine scaled foliage is olive green and held lightly for an open habit and irregular form.

This plant is diecious, bearing pollen on male plants and cones on the females. Pollen is shed in early spring; eighteen months later the pale blue female cones are ready to release their seed. Many of the named varieties are male clones. This is a popular choice for naturalized plantings in open space, green belts and highway verges where they adapt to most dry climate conditions. This makes a valuable high desert wind break and privacy screen when planted in windrows or added into a mixed shelter belt. Few trees work as well in the ranch setting and may also be valuable in mountain resort communities as a versatile problem solver.

Characteristics
  • AHS Heat Zone

    7 - 1

  • USDA Hardiness Zone

    3 - 7

  • Sunset Zone

    1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Needled or Scaled Evergreen

  • Sun Exposure

    Full Sun

  • Height

    0'-50' / 0.0m - 15.2m

  • Width

    0'-20' / 0.0m - 6.1m

  • Bloom Time

    Spring

  • Native To

    Western United States, Canada, Mexico

Growing Conditions
  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Clay, Loam, Sand

  • Tolerances

    Pollution, Drought, Salt

  • Growth Rate

    Medium

  • Water Requirements

    Xeric/Desert, Drought Tolerant, Average Water

  • Habit

    Pyramidal

  • Seasonal Interest

    Spring, Summer, Fall

Ornamental Features
  • Flower Interest

    Insignificant

  • Flower Color

    Blue

  • Fruit Color

    Blue

  • Foliage Color (Spring)

    Gray Green

  • Foliage Color (Summer)

    Olive, Gray Green

  • Foliage Color (Fall)

    Olive, Gray Green

  • Bark Color

    Brown

  • Fragrant Flowers

    No

  • Fragrant Fruit

    Yes

  • Fragrant Foliage

    Yes

  • Bark or Stem Fragrant

    Yes

  • Repeat Bloomer

    No

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    No

  • Foliage Texture

    Fine

  • Foliage Sheen

    Matte

  • Evergreen

    Yes

  • Showy Bark

    No

Special Characteristics
  • Bark Texture

    Exfoliating

  • Usage

    Foundation, Hedges, Screening / Wind Break, Shade Trees

  • Sharp or Has Thorns

    Yes

  • Invasive

    No

  • Self-Sowing

    No