PERENNIALS: Have your perennial borders finished blooming? If so, consider adding fall-blooming perennials to prolong the color in your garden. Anemone, asters, black-eyed susans (rudbeckia), hardy chrysanthemum, golden rod (solidago), sedum, and heleborus niger make great additions to your landscape, giving it a new lease during the beautiful fall months.
ANNUALS: Trim back and feed your annuals for one more good fall bloom. Remove spent or diseased annuals and plant cool-weather plants like pansies, violas, mums, and ornamental cabbage and kale. The pansies and violas will winter over and provide a spring show as well.