The terroir of wines from New Zealand
New Zealand's wine regions have alluvial soils in most cases that facilitate excellent drainage, except for Waiheke Island and Central Otago. The prevalent local greywacke, a type of sandstone, makes the soil and terroir somehow unique. In Hawke’s Bay, the Gimblett Gravels, composed of rocky former riverbeds, offer low fertility soils, and create warmer microclimates, beneficial for viticulture. Additionally, limestone deposits, enhancing the terroir complexity, are found in areas such as Canterbury and the Waitaki Valley.
The country's wine regions are largely influenced by a maritime climate, with exceptions like Central Otago experiencing more continental conditions. Spanning latitudes from 36 to 45 degrees south, New Zealand's wine regions enjoy a climate diversity comparable to renowned wine regions like Spain's Jerez and France's Bordeaux.
Positioned primarily on the eastern sides of the islands, these regions benefit from drier conditions and cool nights, crucial for maintaining the acidity and flavour profile of various grape varieties.
Marlborough is New Zealand's top wine region, situated in the northeast of the South Island. It is famous for its Sauvignon Blanc, including vineyards like Cloudy Bay. Central Otago is known for its beautiful landscapes and cool climate Pinot Noir. Hawkes Bay, the wine region on the east coast of the North Island produces Bordeaux style wines along with Chardonnay and Syrah varieties. The Wairarapa region, particularly Martinborough stands out for its Pinot Noir production due to its cool climate and stony soils. Nelson at the tip of the South Island offers a range of boutique wineries.