In June the Truro moors go silver-green — beach plum, bearberry and scrub running low over the sand — and a mowed lawn set into the middle of that reads like a clearing someone made on purpose. Bayberry Gardens, Inc. keeps those clearings honest: cut to a height that survives a dry summer, edged so the line between yard and scrub is a decision rather than an accident. Salt air, thin soil and long afternoons make growing here its own dialect, and the mowing calendar follows it rather than the other way around. From the first cut after the kettle ponds warm to the last one when the light turns amber over the dunes, the aim is a yard that looks at ease in its own landscape. Truro rewards restraint, and a well-kept lawn out here is mostly good judgment.