Alnus firma

Also Known As

Japanese Green Alder

Plant type

tree, shrub

size

H: 15'-30'
W: 10'-25'

planting zones

6a-9b

Alnus firma plant details

Alnus firma is a broadleaf deciduous shrub or tree with green foliage. In spring chartreuse and green flowers emerge followed by brown fruit. Attracts birds. Grows well with sun - dappled shade and even moisture - regular water. Adapts to various soil conditions. Does well in average, clay, rich and well-drained soil. A good option if you're seeking something humidity tolerant and verticillium wilt resistant.

CHARACTERISTICS OF Alnus firma

Plant type: shrub or tree
Plant family: betulaceae
Foliage: deciduous green
Mature size: 10 FT - 25 FT - wide, 15 FT - 30 FT - tall
Flowers: chartreuse and green blooms in spring

GROWING CONDITIONS for Alnus firma

USDA Zones: 6a - 9b
Sun exposure: sun - dappled shade
Watering frequency: even moisture - regular
Resistant to: humidity and verticillium wilt
Soil needs: average, clay, rich and well-drained

Nursery contributed plant descriptions

A "very attractive shrub with striking foliage" (Krussman)...this graceful, dense, 10-25' Alder has sharply toothed leaves with "designer pleats"!; often planted along fields in Japan to provide support for drying rice. S/M-W