The thaw in Canandaigua comes in fits — a warm week, meltwater running high and brown, then one more night that stiffens the mud all over again. Perennial Lawn and Landscape Inc. meets the ground on both sides of that line: mowing, trimming, edging and landscape care once things green up, plowing and snow clearing when they don't. Spring is the season that reveals what was done in fall, and the first cut of the year is a small ceremony — the yard suddenly has shape again. Through summer it is upkeep, week after week, the kind that keeps a place from ever looking behind. Come November the equipment changes and the same properties get looked after in the dark.