Picea pungens 'Blue Mist' (Blue Mist Colorado Spruce)


Botanical Information

FamilyPinaceae
GenusPicea
Speciespungens
Cultivar'Blue Mist'
CategoryWoody
TypeShrub (evergreen)
OriginIntroduced in 1973 at Oro-Green Nursery of Oregon, United States of America. named by Jean Iseli, of Iseli Nursery, Boring, Oregon, United States of America.
Pronunciation

Details

USDA Hardiness Zone3 - 7
USDA Hardiness Ref.
Canadian Hardiness Zone1a - 7a
Canada Hardiness Ref.
RHS Hardiness ZoneH7 - H5
RHS Hardiness Ref.
Temperature (°C)(-37) - (-12)
Temperature (°F)(-35) - 10
Height60-120 cm
Spread120-180 cm
GrowthSlow
Flowering PeriodApril, May

Description and Growing Information

General DescriptionA dwarf conifer, broadly pyramidal with bright blue needles.
ID CharacteristicIncredibly bright blue with short needles.
ShapeDense, rounded, and spreading.
LandscapeIts incredibly bright blue foliage make it an excellent selection for any landscape.
PropagationGraft onto rootstock of Picea pungens well into the winter months to ensure the tree is dormant. Soaking bases in 200 ppm IBA for 3 minutes will assist in successful propagation.
CultivationFull sun in well-drained soil.
PestsRelatively pest free, risk of occasional spruce canker.
Notable SpecimensWhistling Gardens, Wilsonville, Ontario, Canada.
HabitatHorticultural origin.
Bark/Stem DescriptionCoarse texture, platy, exfoliating and becoming more intense with maturity.
Flower/Leaf Bud DescriptionSlender, cylindrical and approximately 4-7 cm long.
Leaf DescriptionExtraordinary short, bright blue needles, about 2-3 cm long.
Flower DescriptionMonoecious.
Fruit DescriptionDull and slender, expanding with age to approximately 5 cm.
Colour DescriptionDuring summer and spring the foliage is a dull blue until winter when the bloom becomes a beautiful bright blue.
Texture DescriptionVery coarse textured.

Photographs