One of my favorite fall garden plants is the showy Clematis paniculata(C. terniflora). Not only does this beauty cover my old fence boards with hundreds of star shaped white blossoms, it also fills the late summer air with a sweet fragrance.
Natural weed killer::2c white vinegar + 1T dish soap + 1T. salt. Blend and pour into a spray bottle. Will kill anything! (Easily gets rid of all those weeds growing in the cracks and seams of the driveway.)