Everything here starts underneath. The bottomland along the township's low roads is old river ground, dark and generous, and it is the reason a Hillsborough Township lawn can go so deeply green by the middle of May. Green Lawn Fertilizing works from that ground upward, feeding turf on schedule through the growing months and keeping the color even from the first thaw to the last warm week of fall. Early spring is the quiet part of the job, and it decides most of what follows. A lawn that looks effortless in June was thought about back in March.