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ALNUS glutinosa ssp. betuloides

Image of Alnus glutinosa ssp. betuloides

Russell Stafford

Family

Betulaceae

Botanical Name

ALNUS glutinosa ssp. betuloides

Plant Common Name

European Alder

Special Notice

This entry has yet to be reviewed and approved by L2G editors.

General Description

Black alder is a medium-sized, fast-growing, deciduous tree native to Europe, western Asia, and northern Africa, but has naturalized in other regions including the northeastern and central United States. It bears handsome, glossy, dark-green leaves from spring to fall, and its catkins provide mild interest in winter and early spring.

Requiring sun but thriving in most soils, it excels as a shade or screening tree in sites that are too damp or barren for other trees. It may be invasive in some situations.

Characteristics

  • AHS Heat Zone

    7 - 1

  • USDA Hardiness Zone

    3 - 7

  • Sunset Zone

    1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Tree

  • Sun Exposure

    Full Sun

  • Height

    60'-80' / 18.3m - 24.4m

  • Width

    30'-35' / 9.1m - 10.7m

  • Bloom Time

    Early Spring, Winter, Late Winter

  • Native To

    Europe, Northern Africa, Western Asia

Growing Conditions

  • Soil pH

    Acidic, Neutral

  • Soil Drainage

    Average

  • Soil type

    Clay, Loam, Sand

  • Tolerances

    Wet Site, Pollution, Drought, Soil Compaction

  • Growth Rate

    Very Fast

  • Water Requirements

    Average Water, Ample Water

  • Habit

    Pyramidal

  • Seasonal Interest

    Spring, Summer, Fall

Ornamental Features

  • Flower Interest

    Insignificant

  • Flower Color

    Tan, Brown

  • Fruit Color

    Green, Brown

  • Foliage Color (Spring)

    Dark Green

  • Foliage Color (Summer)

    Dark Green

  • Foliage Color (Fall)

    Dark Green

  • Bark Color

    Brown, Gray

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Repeat Bloomer

    No

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    No

  • Foliage Texture

    Medium

  • Foliage Sheen

    Glossy

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Bark Texture

    Fissured

  • Usage

    Bog Garden, Screening / Wind Break, Shade Trees

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    Yes