Caucasian alder

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A fast-growing, medium-sized, conical tree with glossy, mid-green, broadly heart-shaped leaves with serrated edges. Fissured brown-grey bark provides all-year-round interest and it produces long, hanging male catkins and short, upright, female ones followed by woody fruit. Tolerates poor or wet soils

Caucasian alder

Scientific classification

Species
Caucasian alder (Alnus subcordata)
Genus
Alnus
Family
Betulaceae
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Toxicity
Trees
Plant type
Higher than 12 metres
Height
4-8 metres
Spread
Deciduous
Foliage
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Habit
Spring · Summer · Autumn · Winter
Season of interest
Full shade
Sunlight
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Ideal temperature

Caucasian alder pictures

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Distribution of Caucasian alder

Distribution map

Iran, Transcaucasus

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Culture

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Toxicity

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Quick identification of Caucasian alder

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Caucasian alder care guide

Moderate regular watering, avoid prolonged drought or waterlogging
Watering
Full shade
Sunlight
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Ideal temperature

Watering

Moderate regular watering, avoid prolonged drought or waterlogging

Fertilizing

Balanced feed in spring and light repeat in growth season

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 seed or by hardwood cuttings

Growing

Thrives in fertile, moist but well-drained soil, but tolerates a range of conditions including poor drainage. Can make a fast-growing screen on wet sites

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Common pests and diseases

Diseases

May be susceptible to phytophthora root rots and honey fungus

Pests

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

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