Rocky Mountain Juniper

Juniperus scopulorum

Cupressaceae

• Spokane Native
• USDA Zone 3-7
• Sun - Part Shade
• Size: 7’ wide x 7'-30’ tall
• Drought Tolerant: Yes
• Evergreen: Yes
• Wildlife Value:  Blue berry-like cones eaten by cedar waxwings, robins, and many other birds; provides excellent nesting habitat and winter cover; seeds consumed by small mammals; important snowbreak for birds

Rocky Mountain Juniper is a native evergreen conifer growing as a shrub or small tree, typically 7-30 feet tall with a narrow, pyramidal to rounded crown. It thrives in full sun and adapts remarkably well to dry, rocky soils, making it exceptionally drought-tolerant once established. This slow-growing species prefers alkaline soils and is commonly found on dry hillsides, rocky slopes, and mountain foothills throughout the Spokane region. It tolerates a wide range of conditions including poor soils, strong winds, and air pollution.

The aromatic evergreen foliage consists of tiny scale-like leaves that lie flat against the branches, ranging from bluish-silvery to dark green depending on variety. The bark is thin, fibrous, and reddish-brown, shredding attractively with age. Small blue berry-like cones (technically seed cones) develop on female plants, covered with a waxy white bloom. These persist through winter, adding visual interest and wildlife value. The aromatic wood has a distinctive cedar scent and the overall form is gracefully narrow, making it ideal for smaller spaces.

Rocky Mountain Juniper is invaluable for wildlife, providing year-round shelter and winter food. The berry-like cones are a favorite of cedar waxwings, robins, juncos, sparrows, and numerous other bird species. The dense evergreen branches offer excellent nesting sites and provide crucial winter cover and snowbreaks for birds during harsh weather. Small mammals consume the seeds. Indigenous peoples historically used the berries for food and decoration, bark for weaving cradles and sandals, and the wood for firewood. The plant was also used medicinally to treat respiratory problems, arthritis, and various ailments.

Excellent for hedges, windbreaks, privacy screens, and specimen plantings, Rocky Mountain Juniper works beautifully in xeric landscapes and native plant gardens. Its narrow form makes it suitable for tight spaces and foundation plantings. Good companions include Big Sagebrush, rabbitbrush, native grasses, and ponderosa pine. The aromatic wood is naturally decay-resistant and has been used for cedar chests, fence posts, and lumber. Note: This plant is NOT fire-wise and should be planted carefully, avoiding areas prone to wildfire and keeping adequate clearance from structures.