It was tested under the pedigree number L42-45. La Rouge is a medium maturing variety that has a high yield potential of tubers that size early. The variety is grown for the fresh market and is generally not stored. Plants are medium large and spreading. Stems are pigmented, leaves are dark green and slightly pubescent, petioles are slightly purple.
Tubers are medium in size, oblong, flattened and somewhat irregular in shape.
Skin is smooth and has a bright red color when harvested with green vines, but color fades as tubers mature. Tubers separate readily from stolons, but there is a tendency toward skinning. Eyes are moderately deep and well distributed. Tuber flesh is medium white to cream. Specific gravity of tubers is low, resulting in good boiling characteristics.