The Northern Strand runs on an old rail bed straight through Malden, and the yards backing onto it get the whole year in view: bicycles in June, bare limbs and blowing snow in January. Reis Landscaping Services keeps both ends of that for the houses along the way — mowing, trimming, edging and cleanups when things grow, plowing, shoveling and salting when they stop. Cold arrives here in a hurry across open ground; the grass quits one week and the sky lets go the next. There's a plainness in doing both that suits the place: same trucks, same streets, different tools in the bed. The measure either way is the same — nothing left half done.