At Dodge Park the Clinton River moves slow and brown beneath the willows, and the grass along its banks holds dew until nearly nine. 3J Landscaping LLC is out well before that, when the air over Sterling Heights is still cool enough to bead on a mower deck. The work is mowing, trimming, edging and hauling away whatever the season drops — maple keys in May, clippings in July, the whole gold weight of October. Lawns here are wide and level, laid out on the neat grid the old township left behind, and ground like that rewards a straight, unhurried pass. By the time the sun clears the treeline the yard is cut, swept and quiet again.