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Ornamental Tree · Easy

How to Grow Green Giant Arborvitae

Thuja standishii × plicata 'Green Giant'

Your complete guide to growing Green Giant Arborvitae.

☀SunFull sun to partial shade (4-6+ hours)
💧WaterModerate water, drought tolerant once established
🗺Zones5–8
📏Height40-60 feet
Green Giant Arborvitae

When to Plant Green Giant Arborvitae

Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.

ZoneStart IndoorsDirect SowHarvest
Zone 5 — — —
Zone 6 — — —
Zone 7 — — —
Zone 8 — — —

Companion Plants for Green Giant Arborvitae

✓ Good companions

Astilbe

Benefits from wind protection and partial shade, adds colorful blooms

Boxwood

Similar growing requirements and maintenance needs, creates layered evergreen structure

Heuchera

Complements evergreen backdrop with colorful foliage, tolerates similar conditions

Hostas

Thrives in partial shade created by arborvitae, adds contrasting foliage texture

Japanese Painted Fern

Enjoys filtered light and wind shelter provided by arborvitae

Pachysandra

Excellent groundcover in shade, helps retain soil moisture

Rhododendron

Benefits from wind protection and slightly acidic soil conditions

Winterberry Holly

Provides seasonal interest and attracts beneficial birds that may help with pest control

✗ Keep away from

Black Walnut

Produces juglone toxin that can inhibit arborvitae growth and cause yellowing

Kentucky Bluegrass

Dense turf competes with shallow arborvitae roots for water and nutrients

Large Maple Trees

Aggressive root system competes heavily for water and nutrients

Notes from the garden

A greener inbox, occasionally.

Seasonal planting ideas, useful tips and a little inspiration. No weeds.