Name: Thuja occidentalis 'Unicorn'
Brand: Pépinière.ca
Availability: InStock

Latin name

Thuja occidentalis Unicorn

Common name

'Unicorn' Cedar

Type

Tree / Shrub

Family

Cupressaceae

Thuja occidentalis 'Unicorn' is a white cedar with a naturally very narrow, columnar habit, selected for its dense, regular form that requires no pruning, making it ideal for narrow hedges, border plantings, or evergreen screens in small spaces. Its glossy dark green foliage remains uniform all year round, with excellent resistance to winter browning. It grows slowly to moderately, while maintaining a slender, elegant silhouette. Very hardy and adapted to harsh climates, it prefers a sunny to semi-shaded exposure and well-drained soil. 'Unicorn' combines compactness, verticality, and low maintenance, perfect for structured landscaping where space is limited.

Care guide

Growing conditions

Light, soil, water and hardiness

Hardiness zone

Zone 2

Exposure

Sun

Watering

Moderate, more common in dry soil

Fertilization

Spring, compost or gentle fertilizer

Soil type

Well-drained, average to rich

Minimum temperature

-45°C

Blooming period

Spring

Flower color

Pale yellow (male), yellowish green (female)

Fruiting

Small, light brown cones, not very noticeable

Foliage color

Dark green

Foliage type

Evergreen (conifer)

Shape

Narrowly columnar

Height

4–5 m (13–16 ft)

Width

0.8–1.2 m (2.5–4 ft)

Growth rate

Moderate

Pets

The availability of our plants varies depending on arrivals, seasons, nursery production and supplier availability. Some varieties may be offered for a limited time only, depending on their natural cycle or current stock. These plant profiles are designed to guide and inspire you when choosing plants for the garden, landscaping projects, containers or long-lasting outdoor arrangements.