The desert around Phoenix is very green. I've not seen anything like this in at eight years, probably longer.
I received a report from a non-photographer that there are lots of flowers along US 60 east of Mesa. Head east on US60 through Apache Junction and out towards Superior. You could/should consider stopping at the Boyce-Thompson Arboreteum, just west of Superior.
Also, I was at Spur Cross Ranch Conservation Are, which is at the north edge of the valley last Friday. There were plenty of flowers and many varieties. However, there were not huge fields of flowers. But it is an interesting area.