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Woody > Juniperus > Juniperus scopulorum > Juniperus scopulorum 'Monam'

Juniperus scopulorum


Monam Rocky Mountain Juniper

Origin:  The cultivar ‘Monam’ (PP 5,084) was discovered by Clayton Berg and developed by Monrovia Nurseries in Azusa, California, August 9, 1983.
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Juniperus scopulorum is a low-growing spreading shrub or ground cover with valuable and useful characteristics. This North American cultivar is tolerant to cold, dry and hot weather conditions. An interesting flat-top form, requires little to no pruning, and little watering, making this shrub extremely low maintenance. This cultivar is known for its vivid steel-blue foliage that remains year round. The prickly nature of this shrub’s foliage repels deer and rabbits.

Michael Pascoe, NDP., ODH., CLT., MSc. (Plant Conservation)


Shrub (evergreen)
Patent Number
USDA Hardiness Zone
Canadian Hardiness Zone
RHS Hardiness Zone
Temperature (°C)
-40 -(-35)
Temperature (°F)
-40 -(30)
0.5 m
2-2.5 m
Description and Growing Information
Flowering Period
General Description
Versatile and resilient in any landscape, a unique flat or ‘table-topped’ ground cover or shrub. Maintaining this shape is not difficult as little pruning is required to maintain its form.
Excellent as a border along driveways and walkways. Aids in erosion control on banks, cut slopes and sloping ground that result in runoff. Its spreading behaviour makes this an excellent addition to a rock garden.
Tolerant to most moisture conditions and pH levels with full sun to partial shade. Requires little, if any, watering, is cold tolerant, and will transplant without a problem in autumn.
Spreading, low growing, flat-topped and neat.
ID Characteristic
Attracts birds and is naturally deer and rabbit resistant due to its prickly leaves. Its foliage is a dramatic blue to silvery-blue colour year round.
Twig blight, cedar apple rust, and seiridium canker
Horticultural origin.
Bark/Stem Description
The bark is red-brown in colour, with exfoliating characteristics. As the bark matures, it creates flat ridges and is imbricated along the stems.
Flower/Leaf Bud Description
The arrangement of the buds is continuous. They are of similar colour to the leaves, and therefore hard to identify.
Leaf Description
Monam’s leaves are less than 1 cm in length, simple scale or awl-shaped and sharp or prickly. The blue to silvery-blue leaves are alternately placed along the stems.
Flower Description
Flowers of this cultivar are monoecious. Staminate cones are papery, solitary at branch tips and are a yellow-brown colour. They are 2-4 mm in length. Ovulate cones are also solitary at branch tips, blue-purple or dark blue, berry-like and waxy. They are 4-7 mm in length.
Fruit Description
Blue berries, waxy and resinous, ovoid in shape and deeply pitted..
Colour Description
Monam is known for its excellent blue foliage that maintains its beauty year-round and may even intensify during the winter months. The colour of the buds proves to be difficult to distinguish from its leaves. The fruit is a bluish colour and the bark of this plant is red-brown.
Texture Description
Leaves are fine in texture, and the bark is scale-like or rough to the touch.
Notable Specimens
Niagara Parks Botanical Gardens, Niagara Falls, Ontario, Canada.
Propagated via semi-hardwood cuttings or simple layering. Simple layering consists of bending a flexible, low growing stem to the ground. A part of the stem must then be covered with soil, with 15-30 cm remaining above the soil. The tip should then be bent into a vertical position and staked. The bent part of the stem will often encourage rooting, but for added assistance, scarify this section. This process can be done using a dormant branch in early spring or with a mature branch in the summer. It could take one or more seasons until the layer is ready to be transplanted. Inspect root formation and ensue the layer has regular moisture.