People from the North and East like to say “I prefer the see the change of seasons” when I talk about 80 degree weather in March.  The thing is, we do have seasons here.  We have cycles of dormancy and growth.  We have changes in temperature and precipitation.  We even have snow occasionally.  Many of our plants are evergreen, but not so the desert willow.  It loses its leaves every Fall, and grows them again the next Spring.  It also has these beautiful flowers that hummingbirds love.  Speaking of which, we are at the Northern migration point of many tropical hummingbirds, and also the Southern migration point for many from Canada, so we have them year round.