Thuja plicata × standishii ‘Green Giant’
Overview
Uses: Privacy screens, windbreaks, property borders, tall hedges, standalone evergreen focal points.
Benefits: Fast-growing evergreen with dense, rich green foliage year-round. Forms a thick, uniform screen with minimal pruning and strong adaptability to varied soil conditions.
USDA Hardiness Zones: 5–8
Sun: Full Sun to Partial Shade
Life Cycle: Evergreen Tree
Growth Habit: Pyramidal, Upright — strong central leader with dense branching.
Foliage Color: Dark Green
Mature Height: 30–50 feet
Mature Width: 12–15 feet
Growth Rate: Fast
Summary
Green Giant arborvitae delivers rapid privacy with a clean, uniform evergreen presence.
This hybrid of Thuja plicata and Thuja standishii is widely planted for its ability to form a dense, tall screen in a relatively short time. Its rich green foliage holds color through winter, creating consistent coverage for property lines, wind protection, and visual separation.
With strong structure, tolerance of varied soil types, and dependable cold hardiness, ‘Green Giant’ remains one of the most trusted choices for homeowners seeking long-term evergreen screening.
Care
Green Giant Arborvitae Care
Plant in full sun to partial shade. Full sun encourages the densest growth, especially in cooler climates.
Provide well-drained soil. While adaptable, it performs best in soil that does not remain soggy.
Water regularly during establishment. Once established, water during extended dry periods, particularly in the first few growing seasons.
Apply a balanced slow release fertilizer in early spring to support steady growth, especially in nutrient-poor soil.
Light pruning can be done in late spring to maintain shape. Avoid cutting back into thick, mature wood. If shaping a hedge, maintain a slightly wider base to encourage even light distribution.
Size
What Size is the Green Giant Arborvitae for Sale Online?
Plants ship in a greenhouse-grade grow pot and are actively growing at the time of shipment. Size will vary depending on the season and growth stage. If you have specific sizing questions, please contact us.
How Large Does Green Giant Arborvitae Grow?
At maturity, ‘Green Giant’ typically reaches 30–50 feet tall and 12–15 feet wide, forming a tall, pyramidal evergreen tree. When planted in rows for screening, spacing 5–10 feet apart will determine the eventual hedge density.
Additional Information
What is the botanical name of Green Giant Arborvitae?
The botanical name is Thuja plicata × standishii ‘Green Giant’.
Is Green Giant good for privacy screens?
Yes. Its fast growth rate and dense branching make it one of the most widely used trees for tall privacy screens and windbreaks. For more options, browse our Privacy Trees & Shrubs collection or explore other selections in Arborvitaes.
How far apart should Green Giant arborvitae be planted?
For a dense hedge, space plants approximately 5–8 feet apart. Wider spacing, up to 10 feet, allows for individual tree development with less overlap.
Does Green Giant require regular pruning?
Minimal pruning is needed. It naturally forms a symmetrical, pyramidal shape. Occasional light trimming can help maintain hedge lines or control height over time.
