Japanese Alder
Alnus japonica
Betulaceae · broadleaf deciduous tree · introduced
Last updated
Data Maturity Structured
This profile synthesizes data from multiple published sources. Expert field review is in progress.
Quick Facts
Height
80 ft
Growth Rate
Fast
Light
Full Sun to Part Shade
Soil
Wet Tolerant
Water
High
Hardiness
Zone Zones 5a–8b
Bloom Time
March
Origin
far eastern Russia, China (Anhui
Diseases (11)
Armillaria ostoyae Armillaria Root Rot Brown Leaf Blotch [VERIFY] Canker and Stem Diseases Viral agents Catkin Hypertrophy and Leaf Curl Collar Rot Lonsdalea quercina subsp Drippy Dieback Symptom category — not a single disease Leaf Spot Neonectria ditissima Nectria Canker Phytophthora spp. (P Phytophthora Root Rot Multiple obligate biotrophic fungi (Erysiphales: Erysipha... Powdery Mildew Thekopsora minima and Naohidemyces vaccinii Rust