Hoyt Arboretum, Portland, Oregon, USA

Common name: Oyama Magnolia

Family: Magnoliaceae

Distribution: Japan, Korea, southern China

Habitat: Forested areas to 2000 meters

IUCN Red list: Least concern

Hardiness: Zone 6a -10 to -5 F

Life form: Deciduous tree

Usage: Ornamental flowering tree

Comments: Oyama magnolia is a vase-shaped, somewhat coarse-textured, deciduous shrub or small tree that is native to understory forested areas in Japan, southeastern China and Korea. It typically matures over time to 10-15' tall and as wide. Nodding fragrant white flowers to 4" wide with crimson stamens bloom from late May to July. Flowers are followed by showy pink oval fruits to 3" long which split open in fall to reveal orange to red seeds. Broad elliptic to oblong green leaves 3-6" long turn golden yellow in fall.
Best grown in moist, fertile, slightly acidic, organically rich, well-drained loams in part shade.