Katsura Tree

Katsura tree (Cercidiphyllum japonicum, Cercidiphyllaceae) is a moderate-growing deciduous tree from Japan and China, reaching 40 to 60 feet in cultivation (up to 100 feet in the wild). It develops a pyramidal crown when young. Rounded, heart-shaped leaves (5 to 10 centimeters, resembling those of Cercis) emerge purplish-tan, mature to bluish-green, and turn soft apricot-orange in fall. The species is dioecious, with inconspicuous flowers appearing before leaves in spring.

Katsura tree grows in sun to part shade on moist soils (pH 5.5 to 6.5) with moderate water needs, hardy in Zones 4b to 8b. It tolerates clay soil. Fall color is best in acidic soils. The tree emits a distinctive light caramel scent during leaf fall. Supplemental watering helps prevent leaf scorch, and bark splitting or sun scald may occur on exposed trunks. Spring night frosts can deform young leaves. Maintenance is low. No significant pest or disease issues are documented. Cultivars include 'Amazing Grace' (weeping, 30 feet) and 'Red Fox' (purple-leaved, 20 feet).