'Princeton' American Elm is one of the best Ulmus for the classic vase-shaped habit and good resistance to both Elm leaf beetle and Dutch Elm disease. Princeton Elm can serve as a larval host to the Eastern Comma, Mourning Cloak, Question Mark, and Painted Lady butterflies. Leaves decay rapidly when compared to other hardwoods like Oaks, Maples, and Hickory. They are also high in nutrient content, useful as a soil-building plant where soils are depleted or generally poor. Its fast growing upright characteristics were what made our grandfather, William Flemer Sr., select it in the 1920s and the subsequent excellent D.E.D. resistance was a marvelous unexpected bonus. Salt and wet site tolerant.