A great native tree for yard and wet locations, such a rain gardens.
Sun, used in difficult wet sites such as those along highways, in parks and other large areas, does well in infertile areas and has the ability to fix nitrogen.
40' at maturity
35' at maturity
Catkins about 10 cm long
Leaves alternate, simple, oval and tapered from the middle to both ends, dull dark green above
Young bark is a gray green or greenish brown that changes to a polished brown with age
The ability of red alder to fix atmospheric nitrogen can result in increases in both nitrogen content and its availability in the soil.