Spring comes up the Esopus first — the creek runs high and brown with snowmelt out of the Catskills, and a week later the lawns in the Town of Ulster are green and asking for a mower. 4K Landscaping takes it from there: mowing, trimming, edging and the cleanup that gets a yard out of March and into May. Hudson Valley summers are generous and humid, and the grass answers accordingly. Holding a weekly line on it means a lawn never looks like it slipped away from anyone. Then October arrives over the valley and the leaf work begins in earnest.