"The Home Garden" from 1953 mentions the following Riwai/taewa
In the home garden potatoes for early planting should first be set to sprout in a light, frost free airy position. Well-sprouted tubers can be planted shallowly in a warm position, but must be earthed up after the shoots appear, and continued earthing-up must be done while danger of frosts is present. Early varieties are: Epicure, Robyn Adair potato , Cliffs Kidney and Arran Banner. Main crops for late planting include, Arran Chief, Iron Duke, Inverness Favourite, Dakota and Auckland Tall Top.