This is quite an achievement, not to grow any potatoes at all, fascinating. So do tell, what did you do? Did you start with seed potatoes and where and in what did you plant them. Did the plants grow at all or did the shy little chaps simply hide completely. Or did you get massive amounts of greenery and a crop of little seeds alone?
I certainly wouldn't advise you to grow from the seed it's usually very disappointing, especially as the seed tubers are usually so cheap and reliable.
More info please.