The first warm morning of the year in Yardville arrives with fog sitting low over Crosswicks Creek, and somewhere inside it a mower starts. That is the season opening. Galvez Landscaping cuts and keeps lawns across Hamilton Township and the flat green ground that runs down toward Groveville, where the soil holds April water long after the sky has cleared. A first cut sets the tone for every one that follows it — even height, straight lines, the borders reclaimed from a long winter. The rest of the year is holding that shape, week after week, until the grass finally slows in the fall.