Euonymus oxyphyllus aka Korean Spindletree

Euonymus oxyphyllus also goes by the name Korean spindle tree. It belongs to the Celastraceae family. It grows as a shrub or small tree that sheds its leaves. It comes from temperate parts of eastern Asia. Its range runs from the Kuril Islands to China. It also grows in Korea, Japan and Taiwan. In Japan, it grows in woods and thickets on low mountains. It is not native to Britain or Ireland.

Garden plants reach about 5–8 feet [1.5–2.5 metres] tall and wide. They grow into a bushy shape. They reach full size within five to ten years. Corky ridges run along the stems. The leaves stay dull green through the growing season. They turn red and purple in autumn, then fall. Small green flowers bloom in spring. Red-purple fruits then hang from the plant. These split open to show orange seeds. The fruit and autumn leaves provide its main seasonal appeal.

Grow this species in full sun or partial shade. It grows in clay, chalk, loam and sand. The soil must stay moist but drain well. Acid, neutral and alkaline soils all suit it. The RHS rates it H7 for UK conditions. Plants For A Future lists USDA zones 4–8. It can grow in exposed or sheltered sites. It suits woodland edges and spots with dappled shade. The RHS suggests informal gardens and gardens for wildlife. It also lists flower borders and gardens that need little care. Growers can start new plants from semi-hardwood cuttings.

Several pests can harm this shrub, such as vine weevil. Others include caterpillars, horse chestnut scale and euonymus scale. Powdery mildew and leaf spot may also occur. Honey fungus may cause problems too. Plants For A Future does not flag it as weedy. Its hard, springy wood has a fine grain. Reported uses include stamps, printing blocks and mosaic work. That source also records use for gynaecological complaints. It gives no details of treatment.

Treat this plant as harmful to people and pets if eaten. Plants For A Future records boiled young leaves as food. It also warns that the plant may be toxic. It notes no records of poisoning from this species. Yet the RHS gives a direct warning about harm if eaten. The reported food use does not prove the leaves are safe. The RHS advises gloves and other safety gear when handling it.