Picea pungens 'Iseli FoxTail' (Iseli Foxtail Colorado Spruce)


Michael's Opinion

Often used as an accent specimen in the landscape because of its narrow, compact, dense form. In situations where some of the other large cultivars such as Hoopsi are crowded this might be a suitable substitute.

Botanical Information

FamilyPinaceae
GenusPicea
Speciespungens
Cultivar'Iseli FoxTail'
CategoryWoody
TypeTree (evergreen)
Pronunciation

Details

USDA Hardiness Zone 4-8
USDA Hardiness Ref.
Canadian Hardiness Zone4a-8b
Canada Hardiness Ref.
RHS Hardiness Ref.
Temperature (°C)-36.6 C
Temperature (°F)-25 F
Height3.3-5 m
Spread2.3-2.6 m
GrowthSlow
Flowering PeriodMarch

Description and Growing Information

General DescriptionVery Prickly, bushy blue in colour very heat and drought tolerant 3.3-5m in height and 2.3-2.67 m in width.
ID CharacteristicBlue foliage, angular branching with a dense pyramidal form and pronounced blue foliage.
ShapeColumnar, pyramidal and dense.
LandscapePopular as a specimen or used in groupings. It is very salt tolerant and is also somewhat drought tolerant.
PropagationGrafted in early January/Febuary in the green house and held untill the spring and summmer months then the cuttings are put outside in the shade or hoop houses for hardening off.
CultivationThis plant is best cultivated in a rich, loamy soil in full sun.
PestsSpruce gall , aphids , spruce bud worm and spider mites.
Notable SpecimensThe Gardens of Fanshawe College, Dwarf Conifer Garden, London Ontario.
HabitatHorticultural origin.
Bark/Stem DescriptionThe bark starts out as a light brown colour but as the tree ages the light brown colour turns to an orange-brown shade.
Flower/Leaf Bud DescriptionBroadly conical to nearly spherical, the apex is blunt while the bud is yellow-brown. The buds are not resinous.
Leaf DescriptionStout, rigid, incurved and very prickly, about 0.3-0.14 mm in size, 4 sided with 6 stomatic lines on each side of the leaf.
Flower DescriptionMonoecious, staminate orange, pistillate and greenish purple in colour.
Fruit DescriptionAn elongated oval shape, 3-6cm in length and 1-3cm in width; brownish in colour.
Colour DescriptionBlue foliage with orange-brown bark.
Texture DescriptionMedium to coarse texture.

Photographs