Rocky Mountain juniper

Juniperus scopulorum 路 Cupressaceae 路 also Rocky Mountain redcedar, Colorado red cedar

A narrow, pyramidal to rounded evergreen with scale-like blue-gray to green foliage, shredding reddish-brown bark and waxy blue berry-like cones that birds eat. It grows slowly on dry, rocky, windy sites where little else survives and is the standard windbreak and screening conifer of the Plains and Mountain West, with upright cultivars such as 'Blue Arrow', 'Skyrocket', 'Wichita Blue' and 'Moonglow'. Keep it away from apple and crabapple trees because it hosts cedar-apple rust.

ConiferSlow growingSun or part shadeLow water
Rocky Mountain juniper
John Brew https://www.inaturalist.org/people/brewbooks, CC BY 4.0, via Wikimedia Commons

Where it stands

Native

  • 馃嚚馃嚘 AB, Canadasource
  • 馃嚚馃嚘 BC, Canadasource
  • 馃嚭馃嚫 United States 路 Native from Washington and the Dakotas south through the Rockies and Plains to Arizona, New Mexico and western Texas (more than 15 states).source

Care

Plant in full sun in well-drained soil and water occasionally the first year; afterward it needs almost nothing. Prune lightly in late winter if shaping; it does not resprout from old wood. Phomopsis and Kabatina twig blights in wet springs, cedar-apple rust, bagworms and spider mites are the main problems; it is highly flammable, so keep it away from houses in wildfire country.

Benefits

Drought tolerantWindbreakWildlifeBirdsSalt tolerantHolds soilFits small spacesLong lived

Good for

WindbreakScreeningSmall yardHedgerowparks

Watch out for

Allergenic pollenPest prone