Backyards in Lancaster do their finest work in the hour after supper in July, when fireflies rise out of the grass and everyone drifts outdoors. Lavish Landscapes tends those spaces: regular mowing so the turf stays thick, trimming close along fences and patios, edging where lawn meets bed so each one keeps to itself. A yard that is kept up actually gets used, which is the real argument for lawn care. The care shows in details nobody names out loud — the straight border, the swept corner behind the shed. Summer this far north is short enough that a lawn ought to be ready for the entire run of it.