Originally bred and developed by Frito-Lay for potato chips, Norwis combines high yields, wide adaptation, and good chipping quality with resistance to various viruses. Large blocky or oval tubers with smooth buff skin have cream colored flesh. Exceptional eating qualities for French fries and baking make this variety popular. These tubers can get big as they develop later in the season, so plant them close to prevent hollow heart. Medium to large spreading plant with white flowers. Conventional.