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thuja green giant trees

Thuja Green Giant trees have quickly become a favourite choice among New Zealand gardeners seeking a fast-growing, low-maintenance evergreen for privacy screens, windbreaks, or as stately specimen trees. With lush, deep green foliage year-round and an impressive growth rate, Thuja Green Giant is the perfect solution for those who want quick results without sacrificing style or resilience.

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 Trees?

Thuja Green Giant trees, a hybrid between Thuja plicata and Thuja standishii, are renowned for their rapid growth – up to 1 metre per year under ideal conditions. This makes them ideal for creating dense, tall hedges and instant privacy screens. Their soft, feathery foliage forms a rich, elegant green curtain, shielding your home from prying eyes, wind, and road noise. Unlike some other conifers, Thuja Green Giant trees rarely suffer from major pests or diseases and adapt well to a wide range of NZ climates, from humid coastal regions to cooler inland gardens.

Growth and Care Tips

Plant your Thuja Green Giant trees in full sun to partial shade for optimal growth. They thrive in well-drained soils but are surprisingly tolerant of heavier soils and urban conditions. Water young trees regularly in their first year to establish a strong root system. Once established, they require little maintenance aside from occasional watering during prolonged dry spells and an annual trim if you want to maintain a crisp hedge shape. Feed with a balanced fertiliser in spring for the best results.

Design Ideas for Thuja Green Giant

Whether you’re creating a grand avenue, a beautiful living wall, or a single eye-catching feature, Thuja Green Giant trees are versatile and adaptable. They work well in formal or informal garden styles and complement other conifers like Thuja occidentalis 'Smaragd' (Green Cedar), Thuja occidentalis 'Pyramidalis', or Cupressocyparis Leightons Green. For a softer look, mix them with golden-foliaged options such as Thuja plicata Old Gold (Thuja Old Gold) or the striking Thuja occidentalis 'Rheingold'.

Alternatives to Thuja Green Giant Trees

If you love the look and performance of Thuja Green Giant trees but want something a little different, there are several excellent alternatives to consider. Thuja plicata offers a classic NZ-native look, while Cedrus atlantica, Cupressus Green Spire, and Cupressus sempervirens Stricta (Pencil Cypress) provide unique silhouettes for accent planting. For upright, columnar forms, Juniperus communis Hibernica fits beautifully into both formal and contemporary garden schemes.

Start Growing Your Own Green Giant Screen

Thuja Green Giant trees are a proven performer in New Zealand landscapes, offering beauty, resilience, and privacy for years to come. Discover how these standout evergreens—and their relatives—can transform your property into a lush, private retreat. Browse our full range, including Thuja occidentalis 'Smaragd' (Green Cedar), Thuja occidentalis 'Pyramidalis', and Thuja plicata, to find the perfect conifer for your garden vision.


Contact us

Whether you need assistance finding the plant you’re looking for or you simply want to know more about who we are and what we do, we invite you to get in touch with us today. A member of The Plant Company team will get back in touch as soon as possible.

–The Plant Company

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