A southern magnolia will drop a blossom the size of a dinner plate and then a leaf as stiff as saddle leather, and both of them land on the lawn. Magnolia Lawn takes that as the job description. Along the older stretches of Old Suwanee Road, where the shade is deep and the yards are generous, the routine runs to mowing, edging, trimming around trunks and mailboxes, and keeping beds swept and mulched under trees that shed year-round. Shrubs get shaped so the house still has its windows. Evenings in June, with the last light coming sideways through the branches and the grass cut level beneath, are exactly why the work is worth doing well.