• slide
  • slide
  • slide
  • 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


April 21, 2021
Plant a Landscape that
Makes a Difference

Webinar

May 12, 2021
Top Plants for Rain Gardens, Water Gardens & Shoreline Gardens
+ Those to Avoid

Webinar

May 13, 2021
Planting Your Rain Garden
Webinar

May 16, 2021
Perennials for Challenging
Growing Conditions

Webinar

June 3, 2021
Creative Container Gardening
Webinar
​​​​​​​
Register today! Plus, watch Melinda's past webinars ON DEMAND
for a limited time.

Learn More

Book an Appearance

Learn More

Win Plantskydd Animal Repellent package

ENTER NOW