Green Giant Arborvitae

Botanical Name: Thuja standishii × plicata ‘Green Giant’

Common Name: Green Giant Arborvitae

Mature Height and Width: 30-40' tall × 12–15' wide

Growth Habit: Strongly upright, broadly pyramidal evergreen with a dense, uniform branching structure. Fast growing with a central leader and consistent taper from base to tip.

Foliage Description: Rich medium to dark green, scale-like foliage with a soft, feathery texture. Maintains color well through winter in Zones 5–7 without significant bronzing. Dense sprays create an effective visual and wind barrier.

Flower Description: Inconspicuous; produces small upright cones that mature to brown, not ornamentally significant.

Bloom Time: Not ornamentally significant.

Fall Color: Evergreen; retains green coloration year-round.

Light Requirements: Full sun to partial shade; optimal density and fastest growth in full sun.

Hardiness Zone: USDA Zones 5–8

Notable Landscape Uses:
Large privacy screens; property line buffers; windbreak plantings; tall evergreen hedges; visual screening for pools or patios; background structure for large residential lots; commercial and municipal screening applications.

Deer Resistance: Moderate to High
Green Giant Arborvitae demonstrates strong resistance in many Northeast landscapes and is significantly less browsed than traditional Thuja occidentalis. However, young plants may experience tip browsing in areas with heavy winter deer pressure. Once established, damage is typically minimal.