Arborvitae (Thuja occidentalis)

Arborvitae are evergreen coniferous trees or shrubs known for their dense, scale-like foliage and naturally pyramidal shape. Popular in landscaping for privacy screens, hedges, and foundation plantings, they are low-maintenance and adaptable. Their name means “tree of life,” referencing their historical medicinal use by Indigenous peoples.

Category

Sun Needs:

  • Full sun to partial shade
  • Prefers full sun for best growth and density
  • Tolerates light shade but may become sparse
  • Ensure good air circulation to prevent fungal issues

Bloom Time:

  • Non-flowering ornamental
  • Produces small, inconspicuous cones
  • Evergreen foliage provides year-round interest
Size:

Height: 10 to 60 feet (varies by species and cultivar)

  • Dwarf varieties: 3–5 feet
  • Standard cultivars: 10–20 feet
  • Large species like Thuja plicata: up to 60 feet or more

Width: 3 to 15 feet. Narrow, columnar varieties available for tight spaces.

Attributes:
  • Dense, evergreen foliage in rich green or golden tones
  • Naturally symmetrical, pyramidal shape
  • Excellent for privacy screens, windbreaks, and formal hedges
  • Cold-hardy and adaptable to various soil types
  • Provides shelter for birds and small wildlife
Care Tips:
  • Plant in well-drained soil; avoid soggy conditions
  • Water regularly during establishment and droughts
  • Mulch to retain moisture and protect roots
  • Prune lightly to shape; avoid cutting into old wood
  • Fertilize in early spring if growth is slow
Pest watch:
  • Monitor for bagworms, spider mites, and deer browsing

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