WSU Clark County Extension

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Moonglow Juniper

Scientific name: Juniperus scopulorum 'Moonglow'

Type:Coniferous trees
Plant Requirements
Zone:3 to 9
Sun:Full sun
Plant Characteristics
Height:20 ft
Width:8 ft
Additional Characteristics



Wildlife value

Description Northwest landscapers rely on the neat and tidy upright growth of Moonglow Rocky Mountain juniper for accent plantings or will combine plants for use in screens. With its slightly blue cast the foliage serves as a pleasing contrast to other garden colors.

This evergreen species typically grows 20’ tall but often no wider than 5’-8’. It bears branches which ascend in a vertical fashion giving the tree an over-all columnar to pyramidal shape at maturity.

Scale-like needles are arranged oppositely and are set close to the stems. They have smooth margins. While the needles are light to dark green they can also become glaucous blue or blue-gray.

The bark on this species is typically reddish brown in color but with time can turn gray. It often exfoliates in thin strips, giving a shredding appearance.

This Rocky Mountain juniper cultivar does best in cool climates. It can tolerate a wide range of site and soil types, other than wet sites. It only grows in full sun and can withstand long periods of drought. The best color (blue) develops in full sun.

Most cultivars require little or no pruning and are relatively free of cultural problems, insects and diseases.
For assistance, contact Dr. Charles Brun (, (360) 397-6060 5701
Computing and Web Resources, PO Box 6234, Washington State University, Pullman WA 99164-6234