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Picea pungens 'Iseli Fastigiate' (Colorado spruce 'Iseli Fastigiate')

Other names: Picea pungens 'Iseli Fastigiata', Colorado blue spruce 'Iseli Fastigiate', Picea pungens (Glauca Group) 'Iseli Fastigiate', Picea pungens glauca 'Iseli Fastigiate'

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Variety or Cultivar
'Iseli Fastigiate' is an upright, open, narrowly conical, slow-growing, evergreen conifer with needle-like, silvery-blue leaves.
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Season of interest

Flower

Spring Summer Autumn Winter
Flower

Foliage

Spring Summer Autumn Winter
Foliage
Height and spread

Height and spread

Size Max height Max spread To maturity
12 m 4 m 20-50 years
39 ft 13 ft 20-50 years

Where to grow

Soil type
  • Clay
  • Loamy
  • Sandy
Soil drainage
  • Moist but well-drained
  • Well-drained
Soil pH
  • Acid
  • Neutral
Sunlight
  • Full Sun
Aspect
  • East
  • West
  • South
  • North
Exposure
  • Exposed
  • Sheltered

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Additional plant details

Cultivation

Grow in moist, well-drained, acid soil in full sun. Needs shelter from cold, drying winds.

Suggested uses

Architectural, Low Maintenance

UK hardiness

H7

USDA zones

Zone 3, Zone 4, Zone 5, Zone 6, Zone 7

Sunset zone

A2, A3, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17

WUCOLS

North-Central Coastal = Unknown
Central Valley = Unknown
South Coastal = Unknown
South Inland = Unknown
High and Intermediate Desert = Unknown
Low Desert = Unknown

Foliage

Evergreen

Habit

Upright, Open branches, Narrowly conical

Native to

Garden origin

Drought tolerant

No

Flood tolerant

No

Toxicity

Not toxic

Plant care

Pruning

Little or no pruning required.

Propagation methods

Semi-hardwood cuttings, Grafting

Pests

Pineapple gall adelgid on spruce trees

Aphids

Red spider mite (box and other)

Diseases

Generally disease free.

Chemical and organic control of spruce pineapple gall adelgids

Cultural control of spruce pineapple gall adelgids

Biological control of spruce pineapple gall adelgids

Take semi-hardwood cuttings in late-summer

Propagate from grafting in winter (advanced)

Plant container grown plants in a sunny sheltered spot

Plant in acidic soil

Plant in acid soils that are moist but well-drained

Requires little or no pruning (winter)

Other plants

Plants in this Genus (0)

Picea

Companion plants (1)

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Pieris 'Forest Flame'
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Pieris 'Forest Flame' Pieris 'Forest Flame'
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