Morning arrives early in New Bedford's north end, where Brooklawn Park holds its dew until the sun clears the rooftops. That is the hour 4 Brothers Landscaping LLC likes best — decks set, the first pass laid down straight across a yard that was shaggy an hour before. They mow, trim, edge the walks and clear the clippings for homes and small properties around the city. Spring cleanups pull winter's grit out of the beds, and fall cleanups gather the maple leaves before the wind off the river scatters them everywhere at once. A tidy lawn is a small promise kept, and they like keeping it.