And we just had a brand new irrigation system put in, front and back yards. New plants, all new landscaping. This is in Maricopa County, metro Phoenix. 
They set the system to run for two hours, four days per week, 2gph. 
Half the new plants look sad/wilted on the non water days - it's already hitting 100 degrees here. 
Should I increase the hours of water? Increase the number of days per week? 
I don't want to lose the new plants.