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Simpson, Benny
Juniperus scopulorum Sarg.
Rocky Mountain juniper
USDA Symbol: JUSC2
USDA Native Status: Native to U.S.
A columnar to somewhat rounded evergreen tree, Rocky Mountain juniper often supports several main stems. The juvenile foliage consists of pointed, white-coated needles. Adult, scale-like foliage varies in color from dark- to bluish- or light-green. Round, dark-blue, berry-like cones, covered with a whitish bloom, ripen in the second year. Mature size is from 30-40 ft. high with a spread of 3-15 ft. Bark is reddish-brown or gray and shedding.
A graceful ornamental, often with narrow crown of drooping foliage, several varieties differ in form and in leaf color. The aromatic wood is especially suited for cedar chests and is also used for lumber, fenceposts, and fuel. Wildlife eat the berries. This species is closely related to Eastern Redcedar (Juniperus virginiana L.), which has dark green foliage and berries that mature in one year.
Plant Characteristics
Duration: Perennial Habit: Tree Size Class: 12-36 ft.
Fruit Type: Cone
Leaf Color: Green
Fruit Color: Blue
Bloom Information
Bloom Color: Yellow
Bloom Time: Apr , May
Distribution
USA: AZ , CO , ID , MT , NE , NV , NM , ND , OK , OR , SD , TX , UT , WA , WY
Canada: AB ,
BC Native Distribution: B.C. to AZ, e. to ND, w. TX & n. Mex.
Native Habitat: Rocky or sandy hillsides; mountains
USDA Native Status: L48(N), CAN(N) Growing Conditions
Water Use: Low
Light Requirement: Sun , Part Shade
Soil Moisture: Dry
CaCO3 Tolerance: High
Cold Tolerant: yes
Soil Description: Dry, rocky or sandy soils. Rocky Caliche type Sandy, Sandy Loam, Medium Loam, Clay Loam, Clay.
Conditions Comments: Rocky Mountain juniper is slow-growing. It tolerates drought and salt spray but does not adapt to high humidity or high night temperatures. It is susceptible to juniper blight and serves as an
alternate host for cedar apple rust.
Benefit
Use Ornamental: Attractive
Use Wildlife: Provides nesting site, cover, seeds for small mammals. Also attracts Cedar Waxwings, Northern Mockingbird, Evening Grosbeak as well as other species.
Attracts: Birds , Butterflies
Larval Host: Olive butterfly
Propagation
Description: Generally, nodal cuttings should be taken after several hard freezes although references point to any time from July to April. Hormone treatment improves rooting. Propagation is also possible by seed but is less reliable.
Seed Collection: Collect ripened fruits in fall or winter, clean by maceration, dry seeds, and store in sealed, refrigerated containers.
Seed Treatment: Warm stratification at 60 degrees for 45-90 days, followed by cold stratification will hasten germination.
Commercially Avail: yes
Mr. Smarty Plants says
Question: Hi, I'm looking for something to use as a hedge. 8 foot or so tall offering semi privacy all year. I like dogwoods but loss of leaves in the winter makes me skeptical. Boxwood would be interesting but only 2 feet tall. Any suggestions? I have an area up to about 8 feet wide and 100 feet long. Thanks - Sioux Falls, SD
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Question: I am looking for an evergreen 6-8 (or more) feet tall, very columnar; 3 feet spread in diameter, zone 5, full sun, dark green, clayish-OK soil.
Thank you so much!
click here to view the full question and answer
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Texas Discovery Gardens - Dallas, TX
Metadata
Record Modified: 2007-07-01
Research By: TWC Staff
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