Korean Boxwood vs Emerald Cedar - TreeTime.ca

Korean Boxwood vs Emerald Cedar

Buxus microphylla Koreana

Thuja occidentalis Smaragd

CUSTOM GROW

COMING SOON

(new stock expected: fall of 2026)

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Emerald Cedar

Korean Boxwood is a vibrant evergreen shrub. A top choice for colder climates, this shrub will look stunning lining a driveway or as a foundation plant.

Easy to root in and maintain, Korean Boxwood's thick foliage is deer resistant and turns an attractive yellow-brown to purplish in winter. Consider applying mulch around the base to keep the roots moist and cool.

Emerald Cedar makes a great addition to landscapes, and is often used to form tight hedges or privacy screens. The thick scale-like foliage adds texture and colour to yards and is commonly used to line driveways. Unlike other cedars it retains its green colour throughout the fall and winter.

It is a semi dwarf species, which generally needs little pruning, but if desired it responds well to trimming. Its attractive, columnar shape and dense foliage makes it a desired landscape feature.

The Emerald Cedar won the award of merit from the Royal Horticultural Society.

Korean Boxwood Quick Facts

Emerald Cedar Quick Facts

Zone: 4a
Zone: 2a
Height: 0.6 m (2.0 ft)
Height: 4 m (13 ft)
Spread: 1.2 m (4 ft)
Spread: 0.9 m (3 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: normal
Moisture: normal
Growth rate: slow
Growth rate: slow
Life span: medium
Life span: medium
Suckering: none
Suckering: none


Foliage: evergreen
Fall colour: yellow-brown to purple
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Other Names: smaragd arborvitae, thuja occidentalis emeraude