Thuja occidentalis 'smaragd'
Emerald Green Arborvitae
Columnar arborvitae cultivar with fine scale foliage; slow growing; useful for vertical forms.
EvergreenConifer
Now: Mid Spring
Care Guide
Placement
Full sun
Needs full sun to maintain compact form.
Watering
Moderate
Water regularly but avoid soggy conditions.
Fertilization
Balanced
Light feeding supports compact growth.
Pruning
Maintenance throughout growing season; structural in spring
Trim candles and strong verticals to maintain shape.
Wiring
Spring or Autumn
Branches brittle; wire early in development.
Repotting
Every 3-5 years
Use free-draining soil; compacted roots dislike wet feet.
Propagation
Cuttings or seed
Cuttings in late summer root slowly but reliably.
Winter: Can bronze slightly; shelter from wind to prevent desiccation.
Summer: Avoid drought stress; keep evenly moist.
Zone 8b: Avoid repotting in wet winter