Green ash is a native, deciduous tree with a large, straight trunk and high branches.
In slow growing, shaded specimens, reassertion of apical dominance when the terminal bud is removed is slow. Fungus, athracnose, rusts, and root rot sometimes damage trees and wood. Large seed crops are produced each year, and the winged samaras are wind-dispersed, most within a few hundred feet of the parent tree. Green ash of sapling or pole size sprouts readily, resulting in clumps of several stems, and cuttings made from young trees root easily under greenhouse conditions. However no practical way to root cuttings from older trees has been found.