Trees

Thuja orientalis Westmost (Chi)

Platycladus orientalis 'Westmont'

Also known as Westmont Oriental Arborvitae

$9.95
SunFull sun to part shade
💧WaterModerate
🌡Zones6-9
🌊CoastalSuitable

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About This Plant

Thuja orientalis Westmost (Chi) is a Arborvitae / Western Red Cedar cultivar, 'Chi', valued for its sculptural form and refined evergreen texture in the landscape.

Arborvitae offer some of the fastest, densest evergreen screening available, with soft scale-like foliage in flat fans and a tidy upright habit that needs almost no shaping. Flat, fan-shaped sprays of scale-like foliage; aromatic when crushed.

Full sun to part shade suits this species best. Plant in moist, well-drained; tolerates a range soil. Hardy USDA Zone 3 to 8. Heavily browsed by deer in winter where pressure is high; protect young plants. Watch for bagworm and spider mites; avoid prolonged drought, which causes interior dieback.

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
Platycladus orientalis 'Westmont'
Common name
Westmont Oriental Arborvitae
Lifecycle
Perennial
Foliage type
Evergreen
Mature size
2-3 ft tall × 2-3 ft wide
Growth rate
Moderate
Bloom time
Early spring
Bloom color
Brown
Foliage color
Green

Care Notes

Plant in well-drained soil; tolerates a range of conditions including lean soils. More drought tolerant than western arborvitae once established. Watch for bagworm, particularly in warmer inland sites; remove by hand if found.

Garden Attributes

  • Pacific NW native
  • Deer resistant
  • Coastal suitable
  • Grown organically
  • Pollinator value: None documented
  • Wildlife: Bird habitat, Bird forage
Row of potted bareroot conifer trees at Dragonfly Farm

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