If you have planted potatoes, watch for the leaves of the plants to stop flowering. When the foliage turns brown and dries out, cut it down and wait about 10 days to allow the potatoes to finish maturing. On a dry day, when the soil is not wet, carefully dig around the potatoes, being careful not to cut or bruise them. Place your harvested potatoes in a cool, dry area of your home for about two weeks to allow them to cure. This will help them stay fresh longer. After they have cured, store them in a perforated paper bag in a dark, cool area.