Japanese Spindle

Euonymus japonicus

Celastraceae · broadleaf evergreen shrub · introduced

Last updated

Japanese spindle (Euonymus japonicus, Celastraceae) is a broadleaf evergreen shrub from Japan, reaching about 10 feet tall and 6 feet wide. Opposite, simple, obovate to narrowly oval leaves (2.5 to 7.5 centimeters) are lustrous dark green and leathery with serrate margins. Small greenish-white flowers (8 millimeters) appear in June, followed by pinkish-red fruit in late summer.

Japanese spindle grows in sun to heavy shade on adaptable soils, tolerating salt, coastal exposure, and heavy pruning, hardy in Zones 5a to 8b. Documented diseases include anthracnose, bacterial blight, crown gall, and powdery mildew. Pest associations include euonymus scale (with resistance documented in 'Acutus' and 'Compacta'), cottony camellia scale, and root weevil. All parts are poisonous in quantity. Cultivars include 'Aureo-marginatus' (gold-edged), 'Green Spire' (columnar), 'Microphyllus' (1 to 3 feet), and 'Silver King.'

Plant Profile

Size & Form

Height
10 ft
Spread
6 ft
Growth Rate
Moderate

Site Requirements

Light
Sun to Part Shade
Soil Drainage
Adaptable
Soil pH
4.5-8.5
Water
Moderate
Drought Tolerance
Moderate to high
Hardiness
Zones 5a–8b

Ornamental Interest

Bloom Time
June
Origin
Japan, Korea, China

Field Observations

Japanese Spindle 'Paloma Blanca' new leaf
Japanese Spindle 'Paloma Blanca': New leaf
March 28, 2026 · Kent
Watch for this season

Active Conidial Spread

Active Infection & Secondary Spread

Root weevilModerate

Adult Emergence & Foliar Feeding

Crown GallMonitor

Dormant in Soil

Diseases: Regionally Documented (4)

Pests: Regionally Documented (3)

Cultivars (7)
'Small Leafed Selections'
Common name: Japanese Euonymus; Mature height: 1–3 ft
'Variegated Selections'
Common name: Japanese Euonymus; Mature height: 12 ft
Hardy to USDA Zone 6
'Aureo-marginatus'
'Green Spire'
'Microphyllus'
'Silver King'
Euonymus japonicus 'Paloma Blanca' – new leaf
'Paloma Blanca'
Variegated foliage: dark green leaves with creamy-white margins. New growth emerges bright chartreuse-yellow.
Observed 2026-03-28. Bright yellow-green new leaves contrasting with mature variegated foliage.
Data Maturity
Structured Multiple sources. Expert review underway.