Thanks for the question! Lombardi Poplars have a mixed reputation because they are short-lived trees and are susceptible to many pests and diseases (borers, crown gall, cytospora canker, galls, leaf scorch, leaf spot, root rot, slime flux, and tent caterpillar). They also tend to sucker abundantly, and older trees can appear ungainly with dead branches. This being said, they do grow extremely quickly and can provide excellent protection from the wind. They are hardy zones 3-9 (should be OK for most areas in Utah). If this description fits your needs, then the Lombardi Poplar might be a good option for you. They prefer moisture but can tolerate some drought stress. Another option (not as fast growing but a moderate grower) might be the Musashino Zelkova, Zelkova serrata "Musashino" (45 feet x 15 feet). Zelkovas not susceptible to any major pests or diseases and are hardy to zones 5-9. Columnar English Oaks (52 feet x 16 feet) are also excellent columnar trees, but much more slow growing (zones 5-8). I hope this helps, feel free to give us a call if you have any additional concerns or questions 801-468-3172. Thanks for your interest!
Sincerely,
Katie Wagner
USU Salt Lake Extension Horticultural Assistant
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