The desert willow requires well-drained dry soils, commonly found as a multi-trunked tree. The showy flowers which resemble catalpa blooms provide nectar for hummingbirds. The long stringy fruits persist through winter.
This plant is listed as beneficial to pollinators in the book, “100 Treasure Valley Pollinator Plants”. https://gardentronic.com/blog/one-hundred-treasure-valley-pollinator-plants/