I tried both the hybrid poplars and hybrid willows in western CO and all but one died. Poor soil, not enough water...who knows. I have one hybrid poplar left, and after three years it is still 3' tall, LOL.
Probably not enough water and could be soil that drains too fast. It can be hit or miss out west and would need irrigation in a lot of situations in those arid climates. Probably could help putting water polymers in the planting hole to help keep moisture in the root zone and heavy layer of mulch.
Lombardy Poplar may do good out west where you are, but only has a lifespan of 15 years in most places because of devastating canker problems. Also you can read a lot online about that nursery you just linked to, which is mostly negative.