
Which conifer hedge is right for you?
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Western Red Cedar HedgeThuja plicataWestern Red Cedar grows 30–60cm a year into a dense hedge of 2–4m or more, and regrows from older wood far better than Leylandii.EvergreenFast 30-60cm per yearRoot BalledPot Grown
White Cedar HedgeThuja occidentalis 'Smaragd'White Cedar 'Smaragd' keeps a slim, upright shape with bright green foliage, ideal for front gardens and boundaries of 1.5–3m.EvergreenSlow 10-20cm per yearRoot BalledPot Grown
Western Red Cedar or White Cedar 'Smaragd'?
| Compare | Western Red Cedar | White Cedar 'Smaragd' |
|---|---|---|
| Growth | Fast, 30–60cm a year | Slow, 10–20cm a year |
| Shape | Broad and bushy | Narrow and upright |
| Foliage | Glossy dark green, fruity scent | Bright emerald green |
| Best hedge height | 2–4m and taller | 1.5–3m |
| Trimming | Twice a year | Once a year |
| Plants per metre | 2–3 | 3 |

Gwynne's Grower's Tip
Most people who ask for Thuja really want a Leylandii-style screen that is easier to live with. If you want height, Western Red Cedar is the one: it grows almost as fast and, unlike Leylandii, it will green up again if you ever have to cut it back.
Choose 'Smaragd' only where you want a narrow hedge that stays around head height. It is slow, so buy it at the size you need rather than waiting for it to grow.
Thuja hedging questions
01Is Thuja the same as Leylandii?
No. Both are evergreen conifers, but Thuja has softer, flatter foliage with a fruity scent and is easier to manage. Western Red Cedar regrows from older wood where Leylandii will not, and White Cedar 'Smaragd' grows far more slowly.
02How fast does Thuja grow?
Western Red Cedar grows around 30–60cm a year once established, so it makes a tall screen quickly. White Cedar Smaragd grows only 10–20cm a year, which is why it is chosen for neat, narrow hedges that stay at a set height.
03When is root-balled Thuja delivered?
Root-balled Thuja is lifted while dormant and delivered from autumn to spring, depending on the weather. Plant it as soon as possible, keep the root ball intact and water it well through its first spring and summer.
Growing Advice for Thuja Hedge Plants
Care GuideThuja Hedge Care GuidePractical UK advice for planting, spacing, watering, feeding, pruning and maintaining Thuja hedging, including Western Red Cedar, White Cedar ‘Smaragd’ and common causes of brown foliage.Read care guide
Care GuideLeylandii Hedge Care GuideAdvice on planting, spacing, watering and pruning Green and Golden Leylandii, including managing fast growth and keeping your hedge healthy.Read care guide What is Western Red Cedar Hedging?
Thuja hedging is renowned for its dense, lush foliage and rapid growth rate, making it an excellent choice for those seeking a low-maintenance, yet highly effective garden barrier. This species, commonly referred to as Western Red Cedar, thrives in a variety of soil conditions and climates, demonstrating remarkable resilience and adaptability, making it an excellent choice for conifer hedging. Thuja hedging is particularly valued for its ability to maintain a vibrant, green appearance throughout the year, providing continuous coverage and aesthetic appeal. Whether used in residential gardens or large-scale landscaping projects, Thuja hedging proves to be a versatile and reliable option for creating secluded, tranquil outdoor spaces. | ![]() |






