Alnus incana, commonly called European gray alder, is a large pyramidal tree that grows to 40-60' tall. It is native to Europe and the Caucasus.
*above specification are indicative only. actual dimensions may vary by +-10%
Maximum Reachable Height
15.00 to 25.00 feet
Purplish-brown (male) and green (female)
easy to grow
Planting and care
Softwood cuttings taken in summer, treated with rooting promoter, and rooted under mist provide good starts; cuttings of mature wood taken soon after leaves fall also are reported to be effective. Two or three year-old seedlings are used for field planting.
Alnus rugosa care
and other disturbed sites. It grows abundantly in various soil types, from sandy to gravelly, loamy, clayey, and mucky, and it can tolerate periods of flooding as well as occasional droughts.
Full sun to part shade
Medium to wet
Apply any organic fertilizer
Alnus rugosa special feature
Speckled alder is used locally for fuel but the wood has no commercial value.
Alnus rugosa uses
to treat anemia, as an emetic, a compress or wash for sore eyes, and a diaphoretic, for internal bleeding, urinary problems, sprains, bruises or backaches, itches, flux, and piles, to cure saddle gall in horses
When mixed with powdered bumblebees, it was used as an aid for difficult labor
Tea was made from alder to cure diarrhea and toothaches
Frequently Asked Questions
What is another name for a Alnus rugosa ?
Alnus rugosa is commonly known as hazel alder
How tall do Alnus rugosa grow?
On average Alnus rugosa grows 15.00 to 25.00 feet
What color are Alnus rugosa ?
A Alnus rugosa plant bears flowers of color Purplish-brown (male) and green (female)
When Alnus rugosa blooms?
With enough light, Alnus rugosa may produce Purplish-brown (male) and green (female) flowers in March-May
How hard is Alnus rugosa to grow?
A Alnus rugosa is easy to grow
How much sunlight does a Alnus rugosa need?
A Alnus rugosa prefers Full sun to part shade
How much water does a Alnus rugosa need?
A Alnus rugosa prefers watering Medium to wet
What kind of soil does a Alnus rugosa need?
A Alnus rugosa prefers well-drained soil
How often should I fertilize my Alnus rugosa ?
To encourage Alnus rugosa growth, Apply any organic fertilizer