Thuja

The Thuja, commonly known as arborvitae or white cedar, is a popular genus of evergreen coniferous trees and shrubs known for their dense foliage, elegant form, and year-round greenery. Thuja trees belong to the cypress family (Cupressaceae) and are native to North America and parts of Asia. They are widely cultivated for their ornamental value and practical uses in landscaping. Thuja is characterized by its soft, scale-like leaves arranged in flat sprays that remain lush throughout the year. Its conical or columnar growth habit makes it an excellent choice for hedges, screens, and specimen planting. Thuja trees also produce small, inconspicuous cones, adding subtle seasonal interest. Popular species include Thuja occidentalis (American arborvitae), commonly used for hedging due to its dense growth, and Thuja plicata (Western red cedar), valued for its larger size, fragrant wood, and natural resistance to decay. Compact cultivars such as Thuja occidentalis ‘Smaragd’ (emerald green arborvitae) are ideal for smaller gardens or as architectural accents. Thuja trees are remarkably adaptable, thriving in a variety of soils, from sandy to clay-rich, and tolerating urban pollution. They prefer full sun to partial shade and benefit from well-drained soil with moderate moisture. Regular pruning helps maintain their shape and encourages healthy, dense growth, especially when used as a hedge. With their versatility, low maintenance needs, and enduring beauty, Thuja trees are an excellent choice for both functional and decorative purposes.