I had believed that my grass, mainly kentucky blue, zone 5, would prefer deep watering, maybe twice a week (total 1" wkly). To promote deeper roots that could sustain some drought and water during early am hours. Maybe supplemented with an occasional light watering during the hottest part of the day to cool it-only on the hottest days. But, recently was told to do frequent, shallow watering and water in the afternoon-evaporation? I didn't believe him but a university's research backed him up.???? P.S. I would like to replace grass with one of the improved varieties of kent. blue that are more drought tolerant (sorry irrigation people) and slower growing. Any suggestions for info? And , what is the latest on watering? I also mow tall, 3.5 ", in the summer, alternate mowing direction, mulch and fertilize twice a yr with a slow-relaease fert., for root development not growth. Has that changed?? Thanks!!!