As for watering, check out your county or state extension service
website. Optimum is usually l" of water a week, but in hot, dry areas
that may be insanity. If you have no limitation on water, do it. Also,
proper mowing technique can help conserve water by not cutting too short
(dries out faster and impedes growth). Florida promotes turning lawn
grass areas into xeriscapes and native plants to save on water; we also
have reclaimed water. Warm season areas aren't the only ones trying to
get away from chemicals and water wasted on grass.