Trees

Abies lasiocarpa 'Glauca Compacta' (Dwarf Blue Rocky Mountain Fir)

Abies lasiocarpa 'Glauca Compacta'

Also known as Dwarf Blue Rocky Mountain Fir

$100.00

Size

☀SunFull sun
💧WaterModerate
🌡Zones4-7
🦌DeerResistant

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About This Plant

Abies lasiocarpa 'Glauca Compacta' (Dwarf Blue Rocky Mountain Fir) is a Fir cultivar, 'Glauca Compacta', valued for its sculptural form and refined evergreen texture in the landscape.

True firs are classic cool-climate evergreens with soft flat needles, aromatic foliage, and upright purple-blue cones held like candles on the upper branches. Soft, flat needles attached singly to twigs; cones stand upright on branches and disintegrate on the tree.

Full sun to part shade suits this species best. Plant in moist, well-drained, cool, acidic soil. Hardy USDA Zone 3 to 7. Watch for balsam woolly adelgid (especially on Abies fraseri), spider mites in heat, and root rot on heavy wet soils. Firs prefer cool, well-drained mountain conditions over hot lowland sites.

For a Pacific Northwest native conifer of similar character, consider Pseudotsuga menziesii (Douglas Fir), the iconic PNW timber tree, or Tsuga heterophylla (Western Hemlock) for shaded sites. For coastal exposure, Picea sitchensis (Sitka Spruce) thrives where salt wind defeats most evergreens.

Plant Details

Botanical
Abies lasiocarpa 'Glauca Compacta'
Common name
Dwarf Blue Rocky Mountain Fir
Lifecycle
Perennial
Foliage type
Evergreen
Mature size
5-8 ft tall × 4-6 ft wide
Growth rate
Slow
Bloom time
Varies
Bloom color
Purple, Green

Care Notes

Plant in cool, moist, well-drained, acidic soil. Avoid hot lowland sites where this subalpine species struggles; choose a cool, north-facing, or elevated location. Water consistently. Monitor for balsam woolly adelgid.

Garden Attributes

  • Pacific NW native
  • Deer resistant
  • Coastal suitable
  • Grown organically
  • Pollinator value: Bees, Native bees
  • Wildlife: Bird habitat, Small mammal forage
Row of potted bareroot conifer trees at Dragonfly Farm

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