• slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide

Common Alder

Botanical Name
Alnus glutinosa
Hardiness
Zones 4 to 7
Height
40 to 60 feet
Width
20 to 40 feet
Flowers
Male catkins, female purplish egg shaped strobile
Fruit
Winged nutlet borne on egg-shaped woody strobile, persistent
Light
Full sun to part shade
Soil
Moist to wet
Planting & Care
  • Transplants easily in spring
  • Good tree for reclamation sites
  • Fixes own nitrogen
Problems
Wooly alder aphid, tent caterpillar, can become invasive
Varieties
  • Laciniata - dissected leaves
  • Pyramidalis - upright, narrow spread, good disease resistance

Upcoming Appearances


August 22
Mequon Nature Preserve
Mequon, WI
 

August 24
Sanger House Gardens
Milwaukee, WI
 

Sept. 14
Pasquesi Home & Gardens
Lake Bluff, IL

Learn More

Book an Appearance

Learn More

Win Melinda's Trees and Shrubs DVD set!

ENTER NOW