Habitat:
Although usually occurring on moist bottomlands, along stream banks
and wet upland sites, it is extremely tolerant of climatic conditions, and
can withstand heat, cold, droughts and floods. With wind-dispersed seeds
that remain viable for years and germinate easily, this fast-growing species
is common in fencerows, wood edges and uncultivated sites.
Diseases: Pests and diseases are seldom problematic to the green ash, but this species is somewhat susceptible to ash yellows, depending on which cultivar is planted. It becomes more susceptible to borers, canker and Verticillium wilt following drought or injury. Leaf diseases during wet spring weather may defoliate trees, but they usually recover. Ash flower mite galls sometimes cause the flowers of male trees to become deformed into unsightly brown growths that persist on the tree into winter.
Distribution: This is the most widely distributed of all the native US ashes. The range extends from Nova Scotia to Alberta in Canada, south to Texas and northern Florida. This species is most abundant in the Mississippi River Valley, and is native throughout Iowa.
