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Woody > Juniperus > Juniperus squamata > Juniperus squamata 'Blue Star'

Juniperus squamata

'Blue Star'


Blue Star Single Seed Juniper




Origin:  'Blue Star' is a mutation of the Juniperus cultivar ‘Meyeri’, discovered in Holland and introduced into the market in 1964.
            Mike's Opinion

this is Mike

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This is an award winning juniper with attractive, year-round blue foliage. The plant will not tolerate any standing water, heat or humidity but does tolerate deer, drought, polloution, rabbits, seashores, slopes and winds. Its life span is 30 years and grows up to 2 m. The rich foliage may decline in high humidity and in high night temperatures. Provides a striking contrast among other conifers.



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

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Family
Cupressaceae
Genus
Juniperus
Species
squamata
Cultivar
'Blue Star'
Category
Woody
Type
Shrub (evergreen)
Pronunciation
USDA Hardiness Zone
4 - 8
Canadian Hardiness Zone
2a - 8a
RHS Hardiness Zone
H4 - H7
Temperature (°C)
-35 - (-7)
Temperature (°F)
-30 - 20
Height
30 - 90 cm
Spread
30 - 120 cm
Photographs
Description and Growing Information
Flowering Period
General Description
Juniperus squamata 'Blue Star' is a ground-covering juniper with shaggy, cinnamon bark and pretty blue, star-shaped needles.
Landscape
Can be grown as ground cover, over slopes and where runoff is a problem. Makes a striking contrast among other conifers. Can be trained to grow like a tree or rounded, squat shrub, small compact bush or along retaining walls.
Cultivation
Grow in full sun to part shade, in soil with a pH range of 5.5 - 8.5, containing mostly sand to clay loam. Fertilize yearly, avoiding the late growing season. Adaptable to both dry and moist growing conditions, mulch is recommended, AHS heat zone 1 - 5.
Shape
Bushy, low-mounded hemispherical.
Growth
Slow
ID Characteristic
Pale blue-green foliage, unique among the conifers. Needles form a star-shape.
Pests
Possible problems include: leaf miners, bark beetles, scale insects, aphids, mites, caterpillars, bagworms, phomopsis twig blight, gymosporangium rust, dieback, canker, lesion nematodes, brown felt blight, and heart and wood rots.
Habitat
Horticultural origin.
Bark/Stem Description
Exfoliating, shaggy cinnamon bark, moderately fissured.
Leaf Description
Needles are awl-shaped and silver blue, in whorls of 3 radially arranged around branches so that they look like stars.
Fruit Description
Black, insignificant ornamentally. Berry-like female cones containing a single seed.
Colour Description
Silver-blue.
Texture Description
Extremely fine, delicate and sharp.
Notable Specimens
The Gardens of Fanshawe College (Conifer Garden), London, Ontario, Canada.
Propagation
By ripe cuttings taken in late autumn through winter. Also by roots held in a humid cold frame or soft cuttings taken in the summer and placed over bottom heat and under a misting system.
References
Micheal. A., Dirr. Manual of Woody Landscape Plants. Sixth Edition, Jan 30 2013.
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