Looks pretty, but the Palo Verde is a nasty tree armed with sharp daggers. They grow in Phoenix with little need for water and bloom pretty yellow flowers about three times per year. I like them regardless of their weapons, in the last ten years the seeds they drop have given me six new trees.
This year my big beautiful Palo Verde gave me three new trees, all took root in my backyard. Usually they pick crazy places like the middle of the driveway or along a fence line and have to be removed. Got lucky this year, these seedlings took root where they can all stay. In two years I will have more shade!