I was a MG there for five years while I lived in Illinois. Now I am a resident of Tucson and am a member of a landscape committee. I trust the information from this source so that is why I am e-mailing. I need to know if the underground root system of a DESERT WILLOW tree is a large one. And if the stump and ground roots are ground will suckers still grow. I hope you can help me in this issue. Many thanks and happy gardening to all!!!!