Thuja occidentalis 'Smaragd'
Emerald Green Arborvitae
The Thuja occidentalis 'Smaragd', or Emerald Green Arborvitae, is a popular evergreen conifer known for its dense, conical growth habit and vibrant green foliage that maintains its colour year-round. Growing up to 3 to 5 metres tall and 1 to 1.5 metres wide, this low-maintenance tree is ideal for hedging, screening, or as a vertical accent in garden beds and landscapes. Its slow to moderate growth rate makes it easy to maintain, requiring minimal pruning.
Hardy and versatile, the Emerald Green Arborvitae is a perfect choice for formal gardens, privacy screens, or as a feature plant in temperate regions.
Specifications
- Height3 to 5 metres
- Width1 to 1.5 metres
- Native toNorth America
- FoliageDense, vibrant green, scale-like leaves; evergreen
- Growth rateSlow to moderate
Conditions
- SoilPrefers well-drained, fertile soils; tolerates sandy, loamy, and clay types
- LightFull sun to partial shade
- WaterModerate; ensure consistent moisture during establishment
- ClimateThrives in temperate and cool climates
Additional Features
- FormNarrow, conical shape with a naturally symmetrical growth habit
- UsesIdeal for privacy screens, windbreaks, hedging, or vertical accents
- SpacingPlant 0.6 to 1 metre apart for hedges or 2 to 3 metres apart for individual features
- Low MaintenanceMinimal pruning required; shape lightly if necessary
- Pest ResistanceGenerally pest-free and hardy
- Drought TolerancePerforms well once established but benefits from supplemental watering in dry spells
- Seasonal AppealEvergreen foliage provides year-round colour and structure
- Cold HardyTolerates freezing temperatures and harsh winters
- VersatilityComplements formal, modern, and cottage garden styles
The Emerald Green Arborvitae is a resilient and elegant tree, perfect for creating privacy, structure, and a touch of year-round greenery in gardens and landscapes.