By noon in July, Roxbury holds its heat, and the oaks over Franklin Park are about the only things moving. Najera's Landscaping starts early for that reason — mowing while the dew is still down, trimming close along fence lines and hydrants, edging so the walks read clean from the street. Turf under that much sun wants a taller cut and honest feeding, not shortcuts. Spring cleanups open the season and fall leaf work closes it, hauled off before rain makes it heavy. Boston yards are small, and that is precisely why every line shows.