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botanical name:
Alnus japonica
Alnus japonica © Deeproot Plant Base
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common name:  Japanese Alder
family:  Betulaceae
characteristics: tree
height: 20.00m
width: 8.00m
growth rate: medium
growth habit: conical
leaf colour: dark green
flower colour: light brown
fruit colour: brown & green
main season: Spring
aspect: full sun
conditions: moist soil, wet/waterlogged soil, clay soil
preferred soil pH: any
minimum temp: -23°C
USDA zone: 6 to 9
Medium to large, conical, deciduous tree with relatively narrow, ovate, glossy dark green leaves, paler on the undersides. Clusters of long, pendant, yellow-brown male catkins and smaller brownish-red female ones, make a good show in late winter and early spring, before the leaves emerge. Ovoid fruits develop in summer.

Moist or wet soil in sun or part shade.

From seed or hardwood cuttings in winter.

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