Alnus japonica – Alnus japonica

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Betulaceae

Alnus japonica – Alnus japonica

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Specifications
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Height
10 – 15(20) m
Crown
broad conical, half-open crown
Bark and branches
branches gray to reddish brown: bark grey, grooved, later peeling off in irregular plates
Leaf
ovate to broad lanceolate, 6-12 cm long, glossy dark green
Flowers
catkins, ♂ light green-yellow, ♀ purplish red, February-March
Fruits
broad ovoid strobiles, 1,5-2cm
Spines/thorns
None
Toxicity
usually not toxic to people, (large) pets and livestock
Soil type
clayed soil, loamy soil, sandy soil
Soil moisture
suitable for wet soil, withstand short flood, withstand long flood
Paving
tolerates no paving
Winter hardiness zone
4 (-34,4 to -28,9 °C)
Wind resistance
good
Other resistances
resistant to frost (WH 1 - 6), can withstand wind, resistant to de-icing salt
Application
parks, cemeteries, large gardens
Shape
clearstem tree
Clear stem tree clay soil loamy soil peaty soil sandy soil tolerates no paving resistant to de-icing salt resistant to frost (WH 1 - 6) suitable for wet soil withstand long flood withstand short flood can withstand wind broad conical 1st size , taller than 12 metres half-open crown green violet yellow average growing non-toxic (usually)
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Frequently asked questions
Alnus japonica

Alnus japonica can eventually reach a height of 10 – 15(20) m, depending on the site and climate conditions.

Alnus japonica is average growing and can eventually reach a height of 10 – 15(20) m, depending on the site and climate conditions.

The right time to plant Alnus japonica is during the dormancy period. In Western Europe, Alnus japonica with root balls can generally be planted from mid-November to late April, although this depends strongly on the climatic conditions and the species of tree.

Alnus japonica blooms in february, march.
General