Juniperus scopulorum 'Blue Heaven' (Blue Heaven Juniper)


Michael's Opinion

This is a very low maintenance tree growing between 2–6 m in height. It is often used in mass plantings, screenings/hedges in the landscape; used for shade, vertical accent and accent to the landscape.

Botanical Information

FamilyCupressaceae
GenusJuniperus
Speciesscopulorum
Cultivar'Blue Heaven'
CategoryWoody
TypeShrub (evergreen)
ReferencesJohnson. Hugh. The International Book of Trees. New York. Mitchell Beazley publishing.1973.
OriginOriginated at Mission Gardens, Techny, Illinois.
Pronunciation

Details

USDA Hardiness Zone3-8
USDA Hardiness Ref.
Canadian Hardiness Zone2-7
Canada Hardiness Ref.
RHS Hardiness Ref.
Temperature (°C)-40
Temperature (°F)-40
Height2-6 m
Spread1.8-2.5 m
GrowthSlow
Flowering PeriodMay

Description and Growing Information

General Description Usually used for mass plantings, hedges/screening and accent to the landscape. It usually grows to about 4-6 m in height and 1.8-2.5 m in spread.
ID CharacteristicA medium sized shrub with a natural pyramidal form, blueish-grey foliage and peeling grey bark. It is low-growing shrub 4-6 m in height and 1.8-2.5 m in spread
ShapeMedium size and has a natural low pyramidal form.
LandscapeCommonly used for privacy screening, informal hedges, vertical accent, attractive foliage, foundation and accent to the landscape.
PropagationCannot be propagated by seed, softwood cuttings are used in the summer months and ripe-wood cuttings in the autumn months. Most cuttings are grafted onto seedlings. The upper part (scion) of one plant grows on the root system (rootstock) of another plant.
CultivationGrows best in moist, well-drained, organic soils in full sun or partial sun. It is tolerant of slightly alkaline soils, does well when pruned.
PestsSusceptible to aphids, beetle borers and spider mites. It is also affected by rust and root rot. Aphids: to control them use the garlic spray, In early stages, dislodge them with a blast of water.
Notable SpecimensNiagara Parks Botanical Garden, Niagara, Ontario. Notre Dame Secondary School, Burlington, Ontario.
HabitatHorticultural origin.
Bark/Stem DescriptionThis shrub has rough textured, peeling grey bark.
Flower/Leaf Bud DescriptionThe buds are small, green, oval-shaped and are scattered throught the termini on the stem.
Leaf DescriptionThe leaves for this shrub are very small, scale-like with blueish-grey foliage closely pressed against the shoot. Leaves are arranged in opposite pairs.
Flower DescriptionDioecious; both male and female flowers are small (30 mm) and form at branch tips. Males flowers are oblong and females nearly round. Males are yellow, females are a green/yellow colour.
Fruit DescriptionThe fruit is a small, berry-like spherical cone about 6-9 mm in diameter, dark blue with a pale blue wax coating.
Colour Description Noticeable bluish-grey foliage, dark blue berries with a pale blue waxy coating, male flowers are yellow, female flowers are a yellow/green colour and has grey, rough textured bark.
Texture DescriptionThe leaves on this shrub are scale-like with medium textures all year round and the bark is rough and peeling.

Photographs