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botanical name:
Alnus firma
Alnus firma © Deeproot Plant Base
common name:  Japanese Alder
synonyms:  Alnus yasha, Alnus yasha var. macrocarpa
family:  Betulaceae
characteristics: tree
height: 9.00m
width: 8.00m
growth rate: medium
growth habit: conical
leaf colour: green
flower colour: light brown
fruit colour: brown & green
stem/bark: brown
main season: Spring
aspect: full sun, part shade
conditions: moist soil, wet/waterlogged soil, clay soil
preferred soil pH: any
minimum temp: -23°C
USDA zone: 6 to 9
description:
Small, densely branched deciduous tree or large shrub. Sharply toothed ovate leaves with heavy veining. Pendant, golden yellow-brown male catkins in spring.

cultivation:
Moist or wet soil in sun or part shade.

propagation:
From seed or hardwood cuttings in winter.

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