Stems are green, thick, non-pigmented with inconspicuous wings. Leaves are green, slightly pubescent and open. Corolla is light pink, anthers are orange and the pollen is low in quantity and quality. Tubers are large, oblong to round, medium thick, with a smooth, medium to deep red skin. Eyes are shallow and well distributed.
Culinary quality is excellent, and specific gravity is higher than most red cultivars.
The outstanding characteristics of Viking are high yield and good culinary quality. It is drought resistant and has moderate resistance to common scab. The variety is well suited for table stock but does not process well. Tubers tend to be large and cultural practices to control tuber size need to be employed.