Bowling Ball Arborvite ( Thuja occidentalis ‘Bobozam’)

Bowling Ball Arborvitae is a compact, dwarf evergreen shrub with a naturally rounded, globe-like shape. Its soft, lacy, blue-green foliage maintains excellent color year-round and requires little to no pruning to keep its tidy form. This cultivar is ideal for foundation plantings, low hedges, and small-space gardens. Discovered as a witches’ broom mutation in Pennsylvania, it is a unique and charming addition to any landscape.

Category

Sun Needs:

  • Full sun to partial shade
  • Best form and color in full sun
  • Tolerates light shade but may become less dense

Bloom Time:

  • Non-flowering (grown for foliage)
Size:

Height: 2 to 3 feet
Width: 2 to 3 feet

Attributes:
  • Naturally rounded, compact form
  • Dense, lacy, blue-green evergreen foliage
  • Low maintenance and slow-growing
  • Excellent year-round color and texture
  • Tolerates clay soil, air pollution, and black walnut
  • Deer-resistant and cold-hardy (USDA Zones 3–7)
Care Tips:
  • Plant in moist, well-drained, neutral to slightly alkaline soil
  • Water regularly during establishment; dislikes prolonged drought
  • Mulch to retain moisture and protect roots
  • Prune lightly only if needed to maintain shape
  • Avoid exposed, windy sites and full shade
Pest watch:
  • Monitor for spider mites, bagworms, and leaf blight

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