Clean up your spring and summer garden. That way you'll make room for your cooler-weather plants. • Remove any plant that is dead, including spring and summer annuals, like petunias, impatiens and vincas.• Get rid of your old summer vegetables that are no longer producing, like tomatoes, summer squash and summer greens.• Trim any plant that is still robust but is seeing the effects of the hot summer months.• Add all of this garden debris to your compost pile unless it is disease or pest ridden, then moisten the pile and turn it thoroughly.