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How to Grow Alnus glutinosa Plants in your Garden

Gardener's HQ Guide to Growing Common Alder

Common alder

Alnus glutinosa - Black Alder on a creek line photograph by Oor Woolie.


Alnus glutinosa Growing and Care Guide

  • Scientific Name: Alnus glutinosa
  • Common Name: Common alder
  • Growing Zone: USA: 3 to 7
  • Life Cycle / Plant Type: Tree

Plant Details

  • Plant Height (Inches): 300 to 600
  • Plant Spread (Inches): 300 to 420
  • Time of Bloom: Spring
  • Flower Details: Purple, Red
  • Leaf Foliage: Green
  • Fruit:
  • Growth Form: Oval, Pyramidal

Ideal Growing Conditions

  • Best Light Conditions: Partially shady to full sunlight
  • Rate of Growth: Average pace
  • Suitable Soil Types: Acidic, Alkaline, Clay, Loamy, Neutral, Sandy, Slightly alkaline, Well drained
  • Soil Moisture: Moist/Wet

Caring Conditions

  • Care:
  • Level of Maintenance: Low
  • Propagation: Seed or hard wood cuttings
  • How to Prune: Requires little to no pruning. In some cases hard pruning can be disruptive.
  • Pests: Can get alder sucker and leaf-mining sawflies
  • Diseases: Susceptible to Phytophthora

Further Information

  • Can Attract:
  • Tolerant of: Drought, Clay Soil, Wet Soil, Air Pollution
  • Best Garden Use: Firewood, Areas requiring pest tolerance, Pollard, Screen
  • Family:
  • Closely Related Species:
  • Miscellaneous: Non-native to North America, Naturalizing, Wetlands plant, Inconspicuous flowers or blooms
  • Genus Detail: Alnus
  • Further Reading and References: Here and Here