Features Organic Dairying – Naturally Better The sandy clay loam alluvial flats of Ruawai, on the northern shores of the Kaipara Harbour, produce 90 per cent of the kumara grown in New Zealand. The soil structure and warm sub tropical climate make the area ideal for this crop.Read More Delwyn DickeyApril 14, 2008, 12:00 amFebruary 7, 2024