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Boxwood

Buxus sinica (BUK-sus SIN-ih-kah)

Family: Buxaceae Non-native Shrub (3-15 ft)

Korean boxwood is a broadleaf evergreen shrub in the Buxaceae (boxwood) family and native to China and Taiwan. Buxus is the Latin name for boxwood or box tree. The common name of boxwood refers to the wood used to make carved decorative boxes. Another etymology is that boxwood describes the square stems of its young plants. It can be grown in average garden soil with medium moisture and good drainage in full to partial sun. Its preference is for moist, sandy loam with slightly acidic to slightly alkaline pH in partial sun. In colder winters, the leaves may turn bronzy. The variety 'Wintergreen' has improved winter color for northern climates. Korean boxwood can be pruned as a privacy screen, used as a border plant or in a rock garden, and even grows well in containers. Insects, Diseases and Other Plant Problems: Blight and leaf spots are occasional foliar diseases. Root rot can be a problem in poorly drained soils. The Clemson Cooperative Extension Home and Garden Information Center has a factsheet on common boxwood insect pests and diseases. For suitable alternatives, see this video created by Charlotte Glen as part of the Plants, Pests, and Pathogens series. VIDEO Created by Elisabeth Meyer for "Trees, Shrubs and Conifers," a plant identification course developed in partnership with Longwood Gardens. More information on Buxus .

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 55 attributes.

How it fits the guild

Guild layer 3 - Shrub (3-15 ft) Optimal soil pH Acid (<6.0); Alkaline (>8.0); Neutral (6.0-8.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Often confused with Abelmoschus manihot
Fills a similar niche Buxus sempervirens 'Arborescens' Buxus sempervirens 'Elegantissima' Buxus sempervirens 'Vardar Valley'
Native alternatives Ilex glabra Ilex vomitoria
Similar, less problematic Distylium Viburnum obovatum 'Raulston Hardy'

Full plant profile

Growing Conditions
Plant type
Perennial; Shrub
Life cycle
Woody
USDA zones
4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Light
Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
Loam (Silt); Sand
Soil pH
Acid (<6.0); Alkaline (>8.0); Neutral (6.0-8.0)
Soil drainage
Good Drainage | Moist
Available space
12-24 feet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 2 ft. 0 in. - 10 ft. 0 in. | Width: 4 ft. 0 in. - 20 ft. 0 in.
Maintenance
Medium
Canopy layer
3 - Shrub (3-15 ft)
Form & Appearance
Habit / form
Erect; Spreading
Foliage
Broadleaf Evergreen
Leaf color
Green
Leaf type
Simple
Leaf arrangement
Opposite
Leaf shape
Oblong
Leaf margin
Entire
Leaf feel
Glossy
Leaf size
1-3 inches long, 1-3 inches wide
Hairs present
No
Leaf detail
Bright green lustrous oblong leaves 1 1/2" long
Flower color
Gold/Yellow; Green
Flower form
Insignificant
Flower detail
Insignificant greenish-yellow separate male and female flowers in spring
Bloom time
Spring
Stem detail
Square stems
Wildlife & Ecology
Native status
Non-native
Origin
China, Taiwan
Landscape Use
Landscape location
Container; Slope/Bank; Walkways
Landscape theme
Cottage Garden; English Garden; Rock Garden; Winter Garden
Design feature
Border; Foundation Planting; Hedge; Mass Planting; Screen/Privacy; Small groups
Garden tags
#privacy #evergreen shrub #rock garden #border planting #drought tolerant #broadleaf evergreen #topiary #deer resistant #evergreen #problem for cats #problem for dogs #problem for horses #container plant #English garden #rabbit resistant #courtyard garden #foundation planting #slopes #shearing #cottage garden #small spaces #hedge #hortcontest #screen #walkway
Problems & Resistance
Insect problems
Boxwood Mite; Boxwood Psyllid; Boxwood Pest Management Calendar; Pests of Boxwood; Oystershell Scale Insect on Ornamental Plants
Problems
Problem for Cats; Problem for Dogs; Problem for Horses
Resistant to
Deer; Drought
Poison severity
Low
Poison symptoms
Dogs and cats: vomiting, diarrhea; Horses: colic, diarrhea, respiratory failure, seizures
Toxic principle
Alkaloids
Contact dermatitis
No
Toxicity summary
Low severity poison

Planted at Hunnicutt

Nobody’s planted this one yet.