High noon in July, and the block around Blue Back Square is all heat shimmer and shade patches, the sidewalk crowd hopping between awnings on LaSalle Road. A few streets off that bustle, Blue Back Landscaping LLC is doing the unglamorous, beautiful work that keeps West Hartford looking the way people picture it — mowers running clean lines, trimmers finding the base of every post and hydrant, beds cut back into crisp shapes. Summer here is generous and merciless at once: the grass grows fast, the weeds grow faster, and only a steady hand keeps a lawn on the right side of that race. So the schedule holds, week after week, through the long green middle of the year. The reward is a yard that looks unbothered by August, which is the hardest look of all to earn.