I also wanted to try sweet potatoes. I found a web site that sells seed potatoes. I would have probably put them in the felt bags also as I do with Yukon Gold and bakers. Our ground is probably too cold for them although potatoes do grow in the ground. I just don't want to mess with worms or such and it so easy to just dump the bags out in the fall and harvest my potatoes without cutting them with a shovel accidentally; also I don't have enough ground.