Fraxinus excelsior 'Hessei'

Hessei European Ash

Fraxinus excelsior 'Hessei' is a large, vigorous, seedless tree with simple leaves, compared to the compound leaves of the species type. The Hessei European Ash does not tolerate hot and dry conditions. This cultivar has some pest resistance, but is quite susceptible to the Emerald Ash Borer, which is severely affecting all species of this genus. Damage can be prevented with the appropriate pesticide, but the treatment cost will eventually exceed replacement cost.