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Thuja occidentalis 'Emerald'

(emerald cedar)

Height: 12 feet

Spread: 4 feet

Sunlight:   full sun   partial shade 

Hardiness Zone: 3b

Other Names: Eastern Arborvitae, American Arborvitae


The ubiquitous tall hedge evergreen always seen planted in rows, this is a narrow, upright accent evergreen, dense foliage held in vertical sprays remains bright green year round; hardy and adaptable, takes pruning well. Low tolerance of dry/drought conditions. Deer like it.

Ornamental Features:

Emerald Cedar has emerald green foliage. The scale-like leaves remain emerald green through the winter.

This is a relatively low maintenance shrub. When pruning is necessary, it is recommended to only trim back the new growth of the current season, other than to remove any dieback. It has no significant negative characteristics.

Emerald Cedar will grow to be about 12 feet tall at maturity, with a spread of 4 feet. It tends to fill out right to the ground and therefore doesn't necessarily require facer plants in front, and is suitable for planting under power lines. It grows at a slow rate, and under ideal conditions can be expected to live for approximately 30 years.

This shrub does best in full sun to partial shade. It prefers to grow in average to moist conditions, and shouldn't be allowed to dry out. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution, and will benefit from being planted in a relatively sheltered location. Consider applying a thick mulch around the root zone in winter to protect it in exposed locations or colder zones.