A May rain crosses Niles in the afternoon, and by evening Dempster Street is steaming, every lawn a shade greener than it was at lunch. Mahon's Landscaping meets that surge head-on: mowing on a weekly turn, trimming around trees and hedges, edging walks and drives, and clearing the yard out in spring and again in fall. Growth like that can run away from a property inside of a week, so keeping pace is most of the job. The payoff is a lot that never once looks like it is catching up. Rain, sun, rain again — the mowers hold their schedule.