By late June, Queset Brook runs low and half-hidden under the alders and the fields at Sheep Pasture have gone tall and seed-headed — but a mowed lawn in Easton should still read crisp against all of that. Walsh`s Landscaping keeps that line: weekly mowing, string-trimming around posts and beds, edges cut true along walks and drives. Spring opens with raking winter's litter off the turf; October closes with the last of the oak leaves cleared before the ground goes hard. The smell of the season's first cut, somewhere off Depot Street, is one of the better things about living here. Everything else a yard wants to be starts with the grass being right.