Saturday morning at Channel Islands Harbor the masts tick in the breeze and the lawns along the water get their turn. B&D Landscaping handles the mowing, the edging and the small tidying that keeps a yard from drifting: the trimmed strip under the fence, the clean sweep of the walk. Coastal air keeps grass growing here when inland towns have gone brown, which is a gift and a chore in the same breath. The crew treats it as a standing appointment rather than an emergency call. There is a particular pleasure in leaving a yard so square that a stranger walking down to the docks notices it without knowing why.