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thuja green giant arborvitae

Thuja green giant arborvitae is a fast-growing, evergreen conifer prized in New Zealand gardens for its glossy green foliage and robust, upright growth. Renowned for creating quick privacy screens, windbreaks, and stately borders, this exceptional arborvitae brings a lush, structured look to any landscape. Whether you’re after a natural green fence to block unwanted views or a reliable hedge that keeps its colour year-round, Thuja green giant arborvitae is a favourite among gardeners and landscapers alike for its adaptability and low maintenance.

Thuja 'Green Giant'

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Thuja 'Green Giant' is a smaller variety of Cedar and bears sprays of glossy, dark green foliage held on slender stems. The result is a tree with a somewhat layered appearance as it grows to 12 m tall and 3 m wide. Thuja plicata 'Green Giant' is commonly grown as a specimen, used as a screen, planted as a backdrop for smaller plants, or trimmed into a hedge. This is a low-maintenance plant that is very forgiving with excellent aesthetics.

Thuja plicata 'Green Giant' trees standing 5 m tall as a lush, green screen.
  • Suited to regions:
    All regions
  • Plant type:
    Conifers
  • Height:
    12.00 m
  • Spread:
    3.00 m
  • Tolerances:
    Coastal, Hardy
  • Garden uses:
    Hedging, Parks, Screening, Specimen
  • Garden styles:
    Architectural, Coastal, Formal, Japanese, Modern
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Thuja 'Green Giant'

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Why Choose Thuja Green Giant Arborvitae?

Thuja green giant arborvitae stands out for its rapid growth, often soaring up to 1 metre per year in the right conditions. Its dense, emerging lime-green foliage matures into a rich, deep green, ensuring a consistent backdrop for mixed borders or foundation planting. This conifer thrives in most New Zealand climates, tolerating varied soils and some coastal exposure, all while resisting pests and diseases.

As a screening plant, Thuja green giant arborvitae delivers both privacy and wind protection without the mess or shedding common with other conifers. Its upright, pyramidal habit makes it a prized feature in formal and informal gardens alike. For instant structure and year-round appeal, few evergreens perform better.

How to Grow and Care for Thuja Green Giant Arborvitae

Position Thuja green giant arborvitae in full sun to partial shade and water deeply during establishment. While adaptable, it prefers well-drained soil enriched with organic matter. Once established, these trees withstand summer dry spells and require little ongoing attention—just an annual trim for a neat hedge or to maintain your desired shape.

Spacing is essential when planting a living wall. For dense screens, place your Thujas 1 to 1.5 metres apart. They respond well to light shaping and can be kept to your preferred height, although many gardeners opt for their majestic, natural form.

Alternatives and Companion Conifers

Looking for a different form or colour in your shelterbelt or hedge? Consider Thuja occidentalis 'Smaragd' (Green Cedar) for its vibrant emerald tones and tight columnar habit, or the elegant silhouette of Thuja occidentalis 'Pyramidalis'. For golden highlights, Thuja plicata Old Gold (Thuja Old Gold) offers softly textured, golden-green foliage.

If your garden space is more formal or compact, dwarf varieties like Thuja occidentalis Caespitosa or the ornamental Thuja occidentalis 'Rheingold' provide versatile options. For contrasting shapes and textures in a conifer garden, pair Thujas with striking evergreens such as Cupressus Totem, Cephalotaxus harringtonia Fastigiata (Japanese Plum Yew), Cedrus atlantica, or Picea abies.

Bring Structure and Privacy to Your Garden

Choose Thuja green giant arborvitae for a tried-and-true solution to privacy, shelter, and evergreen beauty. With robust growth, adaptability, and classic form, this arborvitae enriches any garden design—whether as a hedge, specimen, or part of a mixed conifer display. Explore our range of Thujas and companion conifers to create your ideal landscape backdrop.


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–The Plant Company

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