Description
Juniperus scopulorum 'Moonglow' shrub 25-30 cm C2 | Rocky Mountain juniper
This Rocky Mountain juniper shrub is Juniperus scopulorum 'Moonglow', also known as Blue juniper. Supplied in shrub form, it develops a compact, upright and pyramidal silhouette rather than a narrowly tree-like shape. Its evergreen foliage ranges from blue-grey to silvery-white, creating a cool colour contrast in the garden throughout the year. The foliage is also fragrant, adding another point of interest when the shrub is placed where it can be appreciated. At maturity, it can reach approximately 6 metres in height and may become broad with age. This gives it a fuller presence than a more narrowly presented form. Small, inconspicuous yellow-green flowers appear in April and May. The plant also produces fruit, adding seasonal detail without taking away from its main ornamental value. As a low-maintenance garden plant, it offers lasting structure without relying on showy flowering. Its evergreen character makes it useful in a UK garden where shape and colour are needed beyond the main growing season. This shrub belongs to the juniperus genus and is a clear choice when you are looking for an evergreen shrub with a strong upright outline and distinctive blue-grey foliage.
Key features of Rocky Mountain juniper (Juniperus scopulorum 'Moonglow')
- Evergreen foliage: The foliage stays on the plant throughout the year. Its blue-grey to silvery-white colour gives the shrub a fresh, cool appearance and provides contrast with greener plants.
- Subtle flowering: Flowering is inconspicuous, with yellow-green flowers appearing in April and May. The flowers are a minor feature compared with the evergreen foliage and strong shrub silhouette.
- Light and soil: Choose a position in full sun or partial shade. The plant grows in well-drained sandy, clay or loamy soil that is dry to lightly moist. Good drainage is essential, especially in UK gardens with wet winters, as it does not tolerate waterlogged soil.
- Compact shrub habit: In this shrub presentation, the plant has a low-branching, upright and pyramidal structure. It can broaden as it matures, giving borders and planting areas a fuller evergreen presence. Its form suits the role of a structural plant in a range of evergreen shrubs.
Uses of a Rocky Mountain juniper shrub in the garden
- Specimen planting: The compact upright pyramidal shape makes this Rocky Mountain juniper shrub suitable as a specimen plant. Its blue-grey to silvery-white evergreen foliage creates a clear vertical accent and remains ornamental throughout the year.
- Borders and group planting: The shrub form can add structure to a border or bring a fuller evergreen presence to group planting. Use it where the soil is free-draining and where its mature height of approximately 6 metres can be accommodated.
- Patio pot: It can also be used in a patio pot, provided the planting position offers good drainage. The upright silhouette gives a container a strong shape, while the evergreen foliage keeps the display visually present beyond the flowering season.
- Hardiness and combinations: This plant is hardy from approximately -40°C to -17.8°C and is listed as USDA zones 3 to 7. It can be combined with plants that appreciate sunny conditions and free-draining soil, including evergreen shrubs, drought-tolerant border plants and other structural conifers.
The main ornamental value comes from the combination of blue-grey foliage and a compact, upright pyramidal shrub silhouette. This gives a border, group planting or patio pot year-round structure, clear height and a fuller evergreen presence. The plant is a low-maintenance choice for adding year-round structure and blue-grey colour to a well-drained UK garden.
