Where can I find Sweet potatoes in Zellberg?

Sweet potatoes can also be found in these cities:

Alpbach Finkenberg Fügen Gerlos Jenbach Königsleiten Mayrhofen Pill Praa Schlitters Schwaz Tux Uderns Umlberg Zell am Ziller

You can also find this in Zellberg:

Chocolate Wheat Toast Lump Sugar Cream Products Crispbread Cornflakes Pickled Vegetables Fresh Schupfnudeln Chips