Botanical profile

Thuja occidentalis 'Primo'

Latin name
Thuja occidentalis 'Primo'
Common name
Western Thuja 'Primo'
Type
Coniferous
Family
Cupressaceae

Thuja occidentalis ‘Primo’, commonly known as Primo American arborvitae, is an evergreen conifer with a narrow, pyramidal habit, selected for its exceptional density and rapid growth. It naturally forms a compact column with lustrous dark green foliage, maintaining beautiful coloration throughout the year with a slight bronze tint in winter. Thanks to its uniform and well-structured silhouette, it is an excellent choice for privacy hedges, visual screens, or aligned plantings. Its vigor allows for quickly achieving effective separation while maintaining a controlled width. Thuja occidentalis ‘Primo’ adapts to various types of fresh, well-drained soils and tolerates full sun as well as partial shade. Very hardy, it offers reliability, structure, and lasting privacy in cold climates.

Care guide

Growing conditions

Light, soil, water and hardiness

Hardiness zone
Zone 3
Exposure
Sun
Watering
Regular watering
Fertilization
Slow-release fertilizer in spring. Fertilize monthly or as directed on the bag. Not recommended – use Bionik rooter or bone meal.
Soil type
Acidic to slightly acidic, moist to well-drained
Minimum temperature
'-40°C
Plant appearance

Blooming, foliage and shape

Blooming period
Not significant
Flower color
Non-ornamental
Fruiting
Dried fruits are not abundant.
Foliage color
Green
Foliage type
Persistent
Shape
Conical
Garden structure

Size and growth

Height
1 to 1.2 m (39 to 48 inches)
Width
1 m (3 feet)
Growth rate
very slow
Pet friendly
Safe for pets

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.