Plant size and growth habit are similar to those of Irish Cobbler. Plant maturity is slightly later than Irish Cobbler. Leaves are dull green and small with the terminal leaflet ovate to round. Flowers are pale pink-lilac with white tips and margins which gives a striped effect. The variety sets open-pollinated fruit.
Tubers are round to oblong, slightly irregular with medium deep eyes and white flesh.
The skin is buff in color and has a tendency to form a light, flaky net. Tubers are set deep on short stolons and separate readily from the vines at early harvest dates. Tuber dormancy is similar to that of Irish Cobbler and shorter than Atlantic. Superior is the primary early fresh market variety in those areas shipping directly to market from the field. Yield potential is moderately high with minimum skinning due to harvesting and grading.