Plant bulbs this fall that will come up in the   spring! (daffodils, narciussus, hyacinth, tulips,   snowdrops, crocus, etc.) There are also flowers you can plant by seed in the autumn, like foxgloves. It's a bit late to plant anything else; unless you will have warm weather in   October in your area, in   which case try some lettuces or herbs. Go online and search for "fall planting" and such; you should find plenty of advice.