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Alnus sieboldiana | Plant Finder | Fill My Garden

Home/Plants/Trees

Plants > Trees

Alnus sieboldiana

Alnus sieboldiana

Genus: Alnus
Family: Betulaceae

About this plant

A medium-sized deciduous multi-stemmed tree or shrub to 12m. It has green leaves with paler undersides, neat teeth along the edges and pronounced veins. The male catkins are very stout and yellow and the female woody 'cones' are 2-3cm held singly throughout the autumn and winter

Growing Information

Height

8-12 Metres

Spread

4-8 Metres

Hardiness

Foliage

Deciduous

Growing Conditions

Sunlight

Full Sun

Soil

ChalkLoam

AcidAlkalineNeutral

Not Currently Available

This plant is not currently stocked at any garden centres on our platform.

Moisture

Moist But Well Drained

Aspect

South FacingNorth FacingWest FacingEast Facing

Exposure

ShelteredExposed

Care Guide

Cultivation

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.

Pruning

Pruning group 1

Propagation

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

Pests

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

Diseases

May be susceptible to phytophthora root rot

Garden Uses

Uses

City Courtyard

Planting Places

Greenhouse

Season of Interest

SpringSummerAutumnWinter

Size & Characteristics

Height

8-12 Metres

Spread

4-8 Metres

Time to Full Height

Twenty To Fifty Years