Green Giant Arborvitae

Green Giant Arborvitae (Thuja plicata x standishii 'Green Giant')

Green Giant Arborvitae is a fast way to build real privacy, turning open views into a calm, green backdrop in just a few seasons. It grows into a tall, dense evergreen that feels natural, not stiff, so it works in both classic and more relaxed landscape styles. The rich green foliage keeps its color well through the year, helping your property look finished even in winter. If you want a strong screen with a simple routine, this hybrid is one of the most dependable options for long runs of coverage.

Distinctive Features

This vigorous hybrid forms a dense, narrow pyramidal to conical evergreen with glossy, scale-like sprays that create a full, layered texture. It is known for rapid growth and strong screening performance, often adding noticeable height each year once established. Foliage is typically deep green and can show only minor winter color change compared to many other arborvitae, especially in a good site. Small, upright seed cones may form, maturing from green to brown, but the main appeal is the fast, thick wall of evergreen growth.

Growing Conditions

• Sun: Full sun to part shade, with the densest growth generally in brighter exposures.
• Soil: Adaptable to many soils, best in well-drained soil with consistent moisture, and avoid chronically waterlogged sites.
• Water: Water regularly during establishment, then provide deep watering during extended dry periods for best density.
• USDA Zones: 5 to 8.
• Mature Size: Commonly reaches about 40 to 60 feet tall and 12 to 18 feet wide if left untrimmed.

Ideal Uses

• Focal Point: Use one specimen as a tall evergreen focal point to anchor a large bed with a clean, pyramidal silhouette.
• Screening: Plant in rows to create a fast, dense privacy screen that blocks views year-round.
• Windbreak: Use as a living wind buffer to make gardens and patios feel calmer and more protected.
• Property Line: Define boundaries with a strong evergreen backdrop that looks consistent in every season.
• Backdrops: Place behind mixed borders to make flowers and lighter foliage colors stand out more.

Low Maintenance Care

• Pruning: Prune lightly in late spring to early summer if shaping is needed, and avoid cutting back into bare, leafless wood.
• Mulching: Mulch the root zone to conserve moisture and moderate soil temperatures, keeping mulch a few inches off the trunk.
• Watering: Keep soil evenly moist for the first couple of seasons, then water deeply during drought to reduce stress.
• Fertilizing: Feed in spring only if growth is weak, using a slow-release evergreen fertilizer according to label directions.
• Winter Care: Brush off heavy, wet snow to reduce branch splay and protect the natural form.

Why Choose Green Giant Arborvitae?

• Fast Privacy: Builds a tall, dense screen quickly for instant comfort and separation.
• Strong Evergreen Color: Holds a rich green look through the year for a clean, finished backdrop.
• Low Fuss Growth: Performs well with a straightforward routine once established in a suitable site.
• Screening Versatility: Works as a natural screen, a shaped hedge, or a large specimen in open spaces.
• Deer Pressure Note: Often more deer resistant than many common arborvitae, but protection may still be needed where browsing is heavy.

If your goal is a reliable green wall that grows in with confidence, Green Giant Arborvitae is a smart choice. Give it room, consistent moisture early on, and a site with decent drainage, and it will reward you with dense coverage and year-round structure. Use it in long rows for privacy or as a bold evergreen backdrop behind mixed plantings. Over time, it becomes a strong, low-maintenance backbone that makes the whole landscape feel more settled.