Japanese Blue Oak

Quercus glauca

Fabaceae · broadleaf evergreen tree · introduced

Last updated

Quick Facts

Height
20–30 ft
Growth Rate
Slow
Light
Full Sun to Part Shade
Soil
Moist
Water
Moderate
Hardiness
Zone Zones 7a–8b
Bloom Time
April to May
Origin
extends from the Himalayas eastward to China, Japan and
Watch for this season

Primary Spore Release

Spring Canker Activation

Spring Spore Germination and Infection

Spore Release (Fall & Spring Rains)

+ 4 more — see full disease and pest lists below

Diseases: Regionally Documented (13)

Pests: Regionally Documented (14)

Data Maturity
Structured Multiple sources. Expert review underway.