By two o'clock on a July afternoon the thunderheads have stacked themselves white and enormous over the Front Range, and everyone in Parker starts watching the west. JDR Professional Services, LLC schedules around that sky — mowing, trimming and edging in the clear morning hours, cleanups fit in before the anvil clouds slide east across Douglas County. Summer here is a series of sprints between storms, hail one week and hard sun the next, and lawns take the brunt of both. The crew runs the ordinary list steadily so that a yard can absorb an ordinary Colorado summer. When the rain finally comes through, it lands on grass already cut clean and edged.