In late June the light over Lake Mahopac holds on past eight, and Carmel lawns take on the deep green that only follows a wet spring. Fransen's Landscapes INC. does lawn care through those long evenings — mowing, string trimming, edging along walks and beds, and the cleanups that bracket the growing year. Putnam County yards are rarely flat; they roll off ledges and around old maples, and cutting them well is a matter of reading the ground before the first pass. The reward is the moment the mower shuts off and a lawn simply looks cared for, the border true, the clippings gone. That is the whole ambition, repeated weekly, all season long.