Watering every three days is too frequent for cooler periods. Irrigation clock settings should be adjusted to water less frequently for the cooler spring and fall seasons and more often during summer's heat. Zoysia grass is not reliably hardy in Denver and some winter dieback can be expected. It often is dormant and straw-colored for 8 months of the year and less desirable than cool season grasses such as bluegrass and tall fescue. This is unlike early-blooming apricots and peaches that may produce fruit in only one or two years out of five.
Blueberries grow in acid conditions and do poorly in alkaline Colorado soils.
Sweet cherries and strawberries grow well here. Mowing to 1 inch is too short. Varying mowing heights by the season is unnecessary. Of all brands tested, slugs prefer Bud. Place in a saucer sunk into the ground with the lip at ground level and hope your dog doesn't develop a taste for beer.