Thuja plicata ‘Zebrina’ (Western Arborvitae)

Thuja plicata ‘Zebrina’ is a unique and attractive evergreen, perfect for adding a touch of variegated color to the landscape. Its adaptability to different environmental conditions and striking foliage make it a favored choice for gardeners looking to enhance the aesthetic appeal of their outdoor spaces.

Thuja plicata ‘Zebrina’: An In-depth Look

Thuja plicata ‘Zebrina’, also known as Zebrina Western Red Cedar, is a strikingly variegated cultivar known for its unique foliage and ornamental value. It is admired for its variegated foliage, featuring green leaves streaked with yellow, giving it a zebra-like appearance. It maintains a pyramidal shape with a somewhat open growth habit.

Native: This cultivar belongs to Thuja plicata, a species native to the western regions of North America, particularly along the Pacific coast.

Plant Type and Habit: As an evergreen conifer, ‘Zebrina’ has a pyramidal growth habit, characterized by its upright and moderately dense branching.

Size: It can reach heights of about 30-50 feet tall (9-15 meters) and a spread of around 8-12 feet (2.4-3.6 meters), making it a sizable choice for landscape use.

Foliage: The foliage is the most striking feature, with bright yellow streaks on a green background. The leaves are scale-like and densely packed.

Bark: The bark is fibrous, reddish-brown, and furrowed, adding textural interest to the plant.

Uses: Ideal for specimen planting, hedges, and privacy screens. Its variegated foliage adds color and interest to landscape designs.

Award: Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society.

Hardiness: Hardy in USDA zones 5-7, it is adaptable to a range of environmental conditions.

Wildlife: Provides shelter for birds and small wildlife.

Toxicity: Generally considered non-toxic to humans and animals.

Deer and Rabbit: May exhibits some resistance to browsing by deer and rabbits.

Invasiveness: This cultivar is not considered invasive and typically stays within its planted boundaries.

Benefits: Offers striking variegated foliage, adding year-round interest to gardens. It’s also a relatively low-maintenance plant, suitable for a variety of landscaping needs.

Western Arborvitae Growing Tips

Light: Prefers full sun but can tolerate partial shade. Full sun promotes denser foliage and healthier growth.

Soil: Adaptable to a range of soil types but thrives best in moist, well-drained, acidic to neutral soil.

Water: Regular watering is crucial, especially in dry conditions and for newly planted trees. Established trees have moderate drought tolerance.

Fertilizer: Fertilize in early spring with a balanced, slow-release fertilizer formulated for evergreens. Avoid over-fertilization, which can lead to excessive growth and potential damage.

Pruning: Minimal pruning required. Prune for shaping or size control in late winter or early spring. Avoid heavy pruning into old wood.

Mulch: Provide a generous root zone mulch.

Propagation: Typically propagated by semi-hardwood cuttings in late summer.

Pests and Diseases: Watch for bagworms and root rot.