The latter may be used to flavour and thicken soups, sauces and ice cream. Growing environment Supersweet corn grows most successfully in the Hawke's Bay, Poverty Bay and Auckland regions. It can be grown in other areas, such as the Wairarapa, but crops are generally less successful in these conditions. Agronomy New Zealand seed companies keep a good range of seed. Seed requirements will vary according to seed lot and cultivar.
Germination is less reliable than standard sweet corn especially if temperatures are low.
Moisture content of the soil must be maintained during germination but care should be taken not to overwet the soil. Distances between rows should be 75 cm. Wider spacings allow for a larger number of cobs per plant with a better cob length and weight and a better cob fill. Our understanding of when to apply irrigation and how much is still developing. Sweet corn has a shallow root system that makes it susceptible to moisture stress especially during silking and when the kernels are filling.