Grey Alder
Alnus incana
Also known as
American Black Alder, Common Black Alder, Hoary-Leaved Alder, Speckled Alder, Hoary Alder
Photo by CandideUK (All rights reserved)
Full Sun
Moderate watering
Frost Hardy
H7
RHS hardiness
-20°C
Minimum temperature
Expected size
Height | Spread | |
|---|---|---|
20m | Max | 10m |
12m | Min | 8m |
50 years to reach maturity
Flowering
-
spring
-
summer
-
autumn
-
winter
More images of Grey Alder
Grey Alder Overview
A fast-growing, tall, deciduous upright tree which will produce catkins and has a smooth, dark grey bark. The ovate, toothed leaves are dark and glossy green above, paler green below.
Common problems with Grey Alder
How to propagate Grey Alder
Seed
By seed.
Cuttings
Hardwood cuttings.
Other uses of Grey 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.