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Alnus rugosa

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Alnus rugosa - Speckled Alder

More About Alnus rugosa

  • Pyramidal to oval growth habit
  • Noted for its speckled bark
  • Oval to rounded leaves, margins uneven and double-toothed
  • Male catkins are slender, scaly and suspended on long stalks
  • Female catkins are smaller, erect and cone-like, clustered at the branch ends
  • Good for wetland areas
  • Bloom Time: April or May

Interesting Notes:

Native to Ontario

Zone:

3

Height:

13-15 m

Spread:

8-10 m

Colour:

Green
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Speckled Alder Growing and Maintenance Tips

Best for moist areas of the landscape, such as stream banks and pond borders. Tolerates poor soil conditions.


Alnus rugosa Characteristics

Full Sun
Full Sun
Partial Sun/Shade
Partial Sun/Shade
Attracts Birds
Attracts Birds
Fast
Fast
Low Maintenance
Low Maintenance
Native to Ontario
Native to Ontario

Soil Moisture

Wetland (Root submerged)
Moist to Average
Moist to Wet Soils

Attributes

Catkins
Deciduous

Flowering Time

Spring

Habit

Oval
Pyramidal
Multi-stem/Clump form

Foliage Color

Green

Landscape uses

Naturalizing
Screening (privacy)
Woodland/woods edge

 Suitable Substitutions for Alnus rugosa

Get more info on Alnus glutinosa

Alnus glutinosa

Black Alder