[Marcella]

“You can save potatoes from the previous year, and cut them up so that each chunk has an eye and plant those. I never buy seed potatoes.”

Dear Master Johnny,

HOW DO YOU SAVE THE SEED POTATOES? ANSWER THAT AND I’M SET.

[JRandomFreeper]

A seed potato is simply a potato with an eye that will germinate and reproduce. It's just a potato. Harvest potatoes in the fall or spring, store in a cool, dry place to use for cooking as required, and set a few aside to use as seed for the next year.

There isn't any special potato called a seed potato. All potatoes are potentially seed potatoes, if they have an eye.

/johnny