Yesterday I read in a post about a guy who asked about how to grow potatoes. He asked about mounding up the plants. Someone replied that you had to mound them because they shouldn't get any sun. I don't understand what that means. This is only my 2nd year of growing potatoes.
Tubers form on the roots.
Just be sure to keep the tubers covered. When exposed to sunlight, the produce green patches on the skin that are poisonous. Hope this helps. I went ahead and pulled soil up around my spuds just a little bit higher up. Hope they will do well for me.