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thuja occidentalis smaragd conifer

Thuja occidentalis Smaragd conifer, also known as Green Cedar or Emerald Green Arborvitae, is one of the most popular evergreen hedging and specimen conifers in New Zealand gardens. Renowned for its lush, bright green foliage, slender pyramidal shape, and compact growth habit, this versatile conifer provides year-round beauty and privacy. Whether you’re designing a formal hedge, defining boundaries, or looking for reliable low-maintenance screening, Thuja occidentalys Smaragd offers enduring structure and an attractive backdrop for garden borders and landscaping projects.

Thuja occidentalis 'Smaragd' (Green Cedar)

5 from 2 customers

Green Cedar, Emerald Cedar, Green Arborvitae

Thuja 'Smaragd', commonly known as the Green or Emerald Cedar, grows with a narrow, dense, and columnar habit. The foliage is rich green, sometimes tinged bronze in winter, and produced with a somewhat layered effect to give the plant an interesting texture. It typically grows to 7 m in height and 2.5 m in width in full sun.

Thuja occidentalis 'Smaragd' hedge with bright green foliage.
  • Suited to regions:
    All regions
  • Plant type:
    Conifers
  • Height:
    7.00 m
  • Spread:
    2.50 m
  • Tolerances:
    Extended dry periods, Hardy
  • Garden uses:
    Containers, Hedging, Screening
  • Garden styles:
    Architectural, Backyard, City & Courtyard, Formal, Frontyard, Modern
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Thuja occidentalis 'Smaragd' (Green Cedar)

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Search Thuja occidentalis 'Smaragd' (Green Cedar)

Features and Benefits

Thuja occidentalis Smaragd conifer stands out for its dense, fine-textured foliage that maintains a fresh emerald hue throughout every season. Unlike some conifers, its neat, symmetrical form stays naturally tidy without frequent trimming, making it an excellent choice for low-fuss gardeners. Smaragd reaches around 3–4 metres tall and 0.5–1 metre wide at maturity, making it ideal for narrow hedges or screens in smaller yards. Its resilience to wind, cold, and urban conditions makes it a smart selection for coastal, rural, or city properties.

Ideal Uses in the New Zealand Garden

With its upright and compact habit, Thuja occidentalis Smaragd conifer excels as a living fence, property divider, or shelter belt. It’s perfect for creating a classic formal hedge or as an evergreen accent in mixed conifer gardens. Plant in rows for a rich, privacy-enhancing screen, or use singly as architectural punctuation in modern landscapes. This conifer also works well in large containers for patios and entranceways, providing year-round interest with minimal care.

Planting and Care Tips

Plant your Thuja occidentalis Smaragd conifer in a sunny or lightly shaded spot with well-drained soil. It tolerates most soil types, though benefits from improved drainage and occasional feeding with a slow-release fertiliser. Water well during dry spells, especially while establishing. Prune lightly in late winter or early spring to maintain a dense, uniform appearance. As a hardy species, Smaragd is generally pest- and disease-resistant, making it a reliable long-term feature for your garden.

Explore Related Conifers

If you’re considering combining or contrasting different conifer forms, there are several attractive options to complement your Thuja occidentalis Smaragd conifer planting. For an elegant, narrower look, Thuja occidentalis 'Pyramidalis' offers a similar evergreen vibrancy with a more columnar form. For golden foliage, try Thuja plicata Old Gold (Thuja Old Gold) or Cupressus macrocarpa Fine Gold. If you want larger, faster-growing screens, Thuja 'Green Giant' and Thuja plicata are well-loved choices. For a softer textured look, Picea pungens and Juniperus scopulorum 'Gray Gleam' add silvery tints and graceful forms. For more compact or golden tones, explore Thuja occidentalis 'Rheingold' or discover a touch of Mediterranean style with Cupressus Gracilis (Italian Spruce).

Whether you’re seeking structure, privacy, or a lush year-round display, Thuja occidentalis Smaragd conifer is an exceptional choice for New Zealand landscapes. Pair it thoughtfully with other conifers to create a dynamic, low-maintenance haven that thrives in your setting.


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–The Plant Company

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