Wooden Potato Barrel, ingenious door that opens on bottom so you can harvest potatoes as needed. You can use any barrel to grow potatoes in, or even old car tires work well. It is amazing how many potatoes you can get from one barrel.
Have a lean-to greenhouse! They have the advantage of getting some heat from your house in winter, either heat that would be lost, or if it is very cold, you could open windows into the greenhouse to let your house heating system heat it. Much simpler a