The Palo Verde trees are just beginning to blossom here in Sierra Vista. Remember the pictures I posted back in April of all the Palo Verde trees in bloom at ASU Polytechnic Campus? That shows how cooler we are here in Sierra Vista than in Phoenix. Those pictures were taken April 22nd and this was taken May 26th. Almost exactly five weeks difference … and the trees in Phoenix had blossomed so long that blossoms were dropping everywhere, while these here are just beginning to pop open.