Scientific Name
Quercus glauca

Common Name
Japanese blue oak; Ring cupped oak

Hardiness Zones: 8-9
Habit: Evergreen
Growth Rate: Moderate
Site Requirements: Sun; range of soil types including heavy clay
Texture: Medium to coarse
Form: Upright oval to rounded; often multistemmed
Height: 20 to 30’
Width: 10 to 15’
Leaf: 2.5 to 5.5" alternate, simple leaves; leathery, lustrous dark green above, gray green underside
Flower/Fruit: .75" acorn in groups of 3
Comments: New foliage is rich green to bronze or purple green; sensitive to cold damage
Cultivars: --
Additional Image


List by Scientific Name | Trees | List by Common Name



© Erv Evans, Consumer Horticulturist
Shoprights NC State University