species

Thuja plicata

Western red cedar

A scale drawing of Thuja plicata, 25 m tall · 8 m across, beside a 1.7 m figure.

Scale drawing from this record, beside a 1.7 m figure.

Thuja plicata belongs to the family Cupressaceae, also known as Western red cedar, introduced to the UK. It reaches 25 m tall and 8 m across in about 10 years. It grows in full sun or part shade, on loam or clay soil, where the ground is acid or neutral and in moist or well drained conditions, and suits average or exposed positions. It is evergreen. Its RHS hardiness rating is H7 (very hardy): Below −20°C.

Assembled from the attributes recorded below.

What this plant needs

Size at maturity
25 m tall × 8 m across, after about 10 years
Hardiness
H7 (RHS)
Aspect
Full sun, Part shade
Soil
Loam, Clay
Acidity
Acid, Neutral
Moisture
Moist, Well drained
Exposure
Average, Exposed
In the UK
Introduced

Evergreen — it holds its leaves through the winter.

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