Come April the fields outside Glennville go sweet with onions, and half of Tattnall County smells faintly of harvest. Above The Rest Lawn Service LLC is rolling before that heat sets in, cutting, edging and trimming while the dew still weighs the blades down. Coastal-plain grass takes to this climate the way it takes to nothing else — cut it Friday and it is reaching again by Tuesday. That is why the work is steady, and why a lawn finished right on a spring morning is worth standing back to look at, borders clean and the clippings gone. Onion season passes, the summer comes on hot, and the mowers keep their round.