By late August the lawns around Griggs Farm have taken all the sun they can stand and still come back green after one good rain. Mateo Aparicio Landscaping Services keeps those Bunn Drive properties on a weekly turn — mowing at a height the heat cannot beat, trimming tight to walls and posts, edging where grass reaches for the driveway. The end-of-summer stretch is the honest test of a lawn, and it shows plainly who kept up with it. Fall cleanups follow as soon as the first leaves let go. Princeton, Montgomery, Skillman, Hopewell and Belle Mead are on the calendar.