The Hackensack River begins small in this part of Rockland, threading the low flat ground between Clarkstown's hamlets long before it looks like a river at all. Lawns on that bottom ground hold moisture and grow hard, and Pacific Lawn Sprinklers keeps them cut, trimmed and tidy through the long green middle of the year. August is the real test — heat, humidity, and grass that refuses to slow down — and the answer is a steady schedule and no skipped weeks. A finished lawn ought to look effortless, which is the whole joke of the trade. Lawn care for Clarkstown and its neighboring towns.