Aurora's growing season is bracketed by two appointments nobody notices on the calendar until it is late: the May startup, when the system comes back under pressure and every head has to be checked, and the October blowout before the lines freeze. Hawkins Brothers Lawn and Sprinkler, Inc. keeps both ends, along with the mowing, edging and trimming in between. Around Horseshoe Park the ground rolls enough that one zone can be soaked while another goes bone dry, so a head aimed properly is worth more than another hour of watering. Water is the whole argument for a green lawn out here, and putting it exactly where it belongs is the craft. Lawn and sprinkler service in Aurora, Centennial, Denver and Greenwood Village.