The Triumph™ Elm (Ulmus 'Morton Glossy') is a fast-growing, deciduous shade tree, reaching 50–60 feet in height with a 35–45 foot spread, known for its strong, vase-shaped structure and superior resistance to Dutch Elm Disease. Introduced by the Morton Arboretum, this durable cultivar features glossy green summer foliage that turns yellow in autumn. 
Key Characteristics
Disease & Pest Resistance: Highly resistant to Dutch Elm Disease, and shows good resistance to Elm Yellows and Elm leaf beetle.
Growth & Form: Fast growth rate (up to 3-6 feet/year when young) with a stiff, upright, and eventually vase-shaped form.
Foliage & Fall Color: Dark green, glossy leaves that turn yellow in the fall.
Site Tolerance: Excellent adaptability to urban conditions, including clay soils, compaction, and drought, making it ideal for street tree, parkway, or lawn use.
Hardiness: Zones 4–7. 
Maintenance and Tips
Pruning: Requires early training to establish a strong central leader.
Adaptability: Thrives in full sun and various soil conditions.
Issues: While highly resistant, it is not immune to DED; it is susceptible to Japanese beetles. 
Triumph Elm is favored for its rapid establishment and ability to handle harsh urban environments.