Late spring evenings around the Chestnut Hill Reservoir hold their light until almost eight — long enough to finish one more Brighton lawn. Green landscaping & construction spends those hours mowing, trimming and shaping the beds that ring these houses and apartment blocks. Edging is the part people notice without ever naming it: the crisp seam where lawn meets walk. Cleanups bookend the year, opening the ground in April and closing it out after the last leaves come down. Around Boston the lots are tight and often shared, so the work gets done with the neighbors in mind.