Rocky Mountain juniper (Juniperus scopulorum ‘Wichita Blue’)

Rocky Mountain juniper

Features and Characteristics

Juniperus scopulorum, commonly called Rocky Mountain juniper or Colorado red cedar, is native to the Rocky Mountains from Alberta to Texas and in other mountainous areas from British Columbia south to Arizona. In the Rockies, it is typically found in dry, rocky, foothills above 5000 feet in elevation. This is a broad pyramidal tree with shedding red-brown bark that grows to 50’ tall and 20’ wide in its native habitat. It is similar in appearance to eastern red cedar (J. virginiana) and may hybridize with it if grown in the same area. Light blue-green to dark green scale like foliage lies flat against the branches.

Genus name comes from the Latin name for the juniper.

Specific epithet comes from the Latin word meaning “of cliffs or rocks” in reference to the mountainous habit of the species.

‘Wichita Blue’ is a compact, conical, male form that grows slowly (6-12” per year) to 10-15’ tall, but may eventually reach 15-30’ tall. As the cultivar name suggests, it is noted for its blue or blue-gray foliage that retains good color all year.

Rocky Mountain juniper (Juniperus scopulorum 'Wichita Blue')

Care and Maintenance

Grow in average, medium moisture, well-drained soils in full sun. Adapts to a wide range of soils. Performs well in dryish, sandy soils with good drainage. This tree of western North America is generally intolerant of the hot and humid growing conditions of the deep South. Intolerant of wet soils.

Rocky Mountain juniper (Juniperus scopulorum ‘Wichita Blue’) Requirements

Hardiness zone 3 - 7
Sun light Full sun
Water Medium
Maintenance Low

Common Problems

No serious insect or disease problems. Junipers are generally susceptible to blights (dieback of stem tips), particularly in unusually rainy/wet springs. Phomopsis twig blight is of particular concern. Cedar-apple and related rust diseases spend part of their life cycle on junipers. Root rot may occur, particularly in wet, poorly drained soils. Occasional insect pests include aphids, bagworms, twig borers, webworms and scale. Watch for spider mites.

Uses

Small landscape tree. Screen. Backgrounds.

 

Rocky Mountain juniper (Juniperus scopulorum ‘Wichita Blue’) Details

Common name Rocky Mountain juniper
Botanical name Juniperus scopulorum 'Wichita Blue'
Plant type Needled evergreen
Family Cupressaceae
Hardiness zone 3 - 7
Water Medium
Maintenance Low
Flower color Non-flowering
Flowering period Non-flowering
Height 10 - 15 ft.
Width 4 - 6 ft.