Thuja occidentalis 'Smaragd', also known as Green Cedar or Green Arborvitae, is a favourite choice for New Zealand gardeners wanting a formal, narrow evergreen screen or hedge. One of the most common questions about this conifer is, “What is the typical Thuja occidentalis Smaragd size?” Whether you’re planning a privacy hedge, feature specimen, or compact windbreak, understanding how tall and wide ‘Smaragd’ can grow, both at maturity and during its early years, is essential for making the most of your planting space.
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 'Smaragd' is commonly included in a mixed planting, used as a backdrop for smaller plants, grown for shelter or screening, used for hedging, or planted to line an entranceway or avenue. It is excellent for providing an architectural element and suits being planted against a large, bland wall.

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