This deciduous tree has a greyish trunk with ascending spreading branches that form a conical habit. It has dark green toothed oval leaves and produces pendant catkins before the leaves during early spring.

Hardiness zones 6 to 9

Alnus incanais naturally found from Europe to Asia and North America growing in wet soils of low fertility in an open sunny position and is drought tender but frost resistant.

European Alder is a conical tree that is grown for its attractive habit and tolerance of wet to dry soils with low fertility. It is planted along watercourses or around ponds and used in reclaimed land. It is also planted in parks and gardens as a lawn specimen and establishes in 3 to 5 years and is long lived.ID 1427

Note:
The roots contain micro-organisms that fix nitrogen from the air improving soil fertility

Alnus(ĂL-nus) incana(in-KAH-na)

Betulaceae(BE-tul-AY-see-ee)
Birch