Description
Ulmus x ‘Frontier’ Elm is a hybrid elm cultivar known for its exceptional disease resistance, particularly against Dutch elm disease, which has historically devastated elm populations. Developed through a cross between the American elm (Ulmus americana) and the Siberian elm (Ulmus pumila), ‘Frontier’ combines the graceful vase-shaped form and attractive serrated leaves of the American elm with the hardiness and adaptability of the Siberian elm. This medium to large deciduous tree features a broad, rounded crown with dark green foliage that turns a striking yellow in the fall, providing seasonal interest. Valued for its tolerance to urban conditions, including pollution and drought, ‘Frontier’ Elm is widely planted in landscapes and street tree programs. Its resilience and aesthetic appeal have made it a favored choice in restoration efforts aiming to reintroduce disease-resistant elms to North American environments.