A picture of a Alder

Alder

Alnus incana 'Aurea'

Also known as

Grey alder, European alder, Weeping alder

Alnus glutinosa by Bruce Marlin (CC BY-SA 3.0)

Full Sun
Moderate watering
Frost Hardy

H7

RHS hardiness

-20°C

Minimum temperature

Expected size

Height
Spread

12m

Max

8m

8m

Min

4m

50 years to reach maturity

Flowering

  • spring
  • summer
  • autumn
  • winter

More images of Alder

Alnus-hirsuta-foliage
Alnus incana 1
A photo of Alder
Alnus incana 1-eheep (5097501773)

Alder Overview

Large deciduous tree that produces yellow-green foliage. Flowers are arranged in catkins and develop into cone-like, brown fruits.

Common problems with Alder

How to propagate Alder

Seed

By seed.

Cuttings

Hardwood cuttings.

Other uses of Alder

Often used in land reclamation in areas of dry and poor soil, such as old spoil heaps where it fixes nitrogen and consolidates the soil. Planted as windbreaks, hedging and useful for screening. An early source of pollen for bees and the 'cones' provide food for the birds.