In April the ranchland southwest of Brentwood turns briefly extravagant — poppies and lupine across the slopes above Briones Valley, and the whole range green for a few short weeks before the sun claims it back. LEBEC, Inc. works the town below that display, mowing lawns on a set rotation and edging them so each yard keeps its outline no matter what the hills are doing. Spring means cutting often; midsummer means cutting higher and letting the turf shade its own roots. Trimming handles the fence lines and tree bases, and the last thing done at every stop is clearing the hardscape so nothing is tracked inside. A well-kept lawn out here is a deliberate green in a landscape that only volunteers it twice a year.