Alnus nepalensis

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A fast-growing deciduous tree to 30m. The leaves are a strong green, paler beneath, 18cm long and show no autumn colour. The male catkins are long and cream hanging in large clusters in autumn. The female woody cones develop later, in clusters sitting upright on the bare branches

Alnus nepalensis

Scientific classification

Species
Alnus nepalensis (Alnus nepalensis)
Genus
Alnus
Family
Betulaceae
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Toxicity
Trees
Plant type
Higher than 12 metres
Height
wider than 8 metres
Spread
Deciduous
Foliage
Columnar upright
Habit
Spring · Summer · Autumn · Winter
Season of interest
Full sun · Partial shade
Sunlight
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Ideal temperature

Alnus nepalensis pictures

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Distribution of Alnus nepalensis

Distribution map

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Culture

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Toxicity

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Quick identification of Alnus nepalensis

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Alnus nepalensis care guide

Moderate regular watering, allowing brief slight drying between soakings
Watering
Full sun · Partial shade
Sunlight
Information to be completed
Ideal temperature

Watering

Moderate regular watering, allowing brief slight drying between soakings

Fertilizing

Balanced perennial feed every four weeks from spring through summer

Pruning

Little pruning is needed. Remove diseased, damaged, crowded or crossing shoots and unwanted growth. Timing depends on the plant: generally late winter or early spring; plants prone to bleeding and deciduous magnolias need different timing, and deciduous azaleas and lilacs are pruned after flowering.

Propagation

Propagate by harwood cuttings or seed. For more advice see our information on how to propagate from seed (tree/shrub

Growing

It is a nitrogen-fixer so can grow on poor soil. Suited to river banks on permanently damp soil in good light. For more information see tree cultivation.

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Common pests and diseases

Diseases

May be susceptible to phytophthora root rot and honey fungus

Pests

May be susceptible to alder leaf beetle, alder sucker and leaf-mining sawflies

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