Marlborough -  located at the northern tip of the South Island of New Zealand, is one of the most famous and prominent wine regions in the country. It is particularly renowned for its Sauvignon Blanc production, which has put Marlborough on the world wine map. The primary grape variety used in Marlborough is indeed Sauvignon Blanc.

Sauvignon Blanc is perfectly suited to Marlborough's cool climate, long sunny days, and distinctive gravelly soils. The region's Sauvignon Blancs are known for their intense and aromatic characteristics, bursting with vibrant tropical fruit flavors, zesty citrus notes, and herbaceous undertones. The wine's lively acidity and crispness contribute to its overall freshness and appeal.

While Sauvignon Blanc is the star of Marlborough, the region also produces other grape varieties, although to a lesser extent.

Auckland - located in the north of New Zealand's North Island. While Auckland is primarily known for its red blends made from Bordeaux varieties such as Cabernet Sauvignon, Merlot, Cabernet Franc, Malbec, and Petit Verdot, it also produces some white wines made from Chardonnay and Sauvignon Blanc. 

Northland - a small wine region located in the far north of New Zealand's North Island. The warm and humid climate of this region is suitable for growing a variety of grape varieties, including both red and white grapes.

The most commonly planted grape varieties in Northland are Chardonnay, Pinot Gris, Syrah, and Bordeaux varieties such as Merlot, Cabernet Sauvignon, and Cabernet Franc.

Waikato - The region located on the North Island has a warm, humid climate, which is more suited to growing kiwifruit and other crops than wine grapes. Nevertheless, there are a few wineries in the region that produce wine. The most commonly planted grape varieties in Waikato/Bay of Plenty are Chardonnay and Pinot Gris for white wines, and Pinot Noir, Merlot, and Cabernet Sauvignon for red wines. 

Gisborne - is a wine region located on the eastern coast of New Zealand's North Island. It is known for its sunny and warm climate, which is favorable for grape cultivation. The region primarily focuses on producing white wines, and the primary grape variety grown in Gisborne is Chardonnay.

Chardonnay is well-suited to Gisborne's climate and soil conditions, resulting in expressive and aromatic wines with flavors ranging from citrus and tropical fruits to buttery and toasty notes. Gisborne is considered one of New Zealand's top regions for Chardonnay production.

Hawke's Bay - Hawke's Bay is one of the most renowned wine regions in New Zealand, located on the eastern coast of the North Island. It has a diverse range of microclimates and soil types, which allow for the successful cultivation of a wide variety of grape varieties.

Hawke's Bay is well-known for its Bordeaux-style red wines and is particularly famous for its exceptional Cabernet Sauvignon and Merlot blends. These Bordeaux varieties thrive in the region's warm and sunny climate, producing full-bodied, rich, and complex red wines. Cabernet Franc and Malbec are also grown and used in blending or as standalone varietal wines in Hawke's Bay.

Wellington/Wairarapa - is a wine region located at the southern tip of the North Island of New Zealand. It is known for its cool-climate conditions, which are well-suited for the production of elegant and aromatic wines. The primary grape variety grown and used in Wellington/Wairarapa is Pinot Noir.

Pinot Noir thrives in the region's climate, which features cool temperatures and a combination of clay and limestone-rich soils. Wellington/Wairarapa is renowned for its high-quality Pinot Noir, characterized by its vibrant red fruit flavors, floral aromatics, and fine tannins. The sub-region of Martinborough within Wellington/Wairarapa is particularly famous for its exceptional expressions of Pinot Noir.

Nelson - is a wine region located at the top of the South Island of New Zealand. It is known for its sunny climate and diverse range of microclimates, which allow for the cultivation of a variety of grape varieties. The primary grape varieties grown and used in Nelson include:

1. Sauvignon Blanc: Nelson produces excellent Sauvignon Blanc wines with distinctive tropical fruit flavors, vibrant acidity, and crispness. While Marlborough is the most famous region for Sauvignon Blanc in New Zealand, Nelson's Sauvignon Blancs have their own unique character.

2. Chardonnay: Nelson is also known for its Chardonnay production, particularly the elegant and balanced expressions of this grape variety. Nelson's Chardonnays often exhibit flavors of citrus, stone fruits, and a well-integrated oak influence.

Waipara - is a wine region located in the Canterbury region of New Zealand's South Island. It is known for its cool-climate conditions, diverse terroir, and limestone-rich soils. The primary grape varieties used in Canterbury/Waipara include:

1. Pinot Noir: Pinot Noir is the flagship grape variety of Canterbury/Waipara. The cool climate and unique soil characteristics of the region result in elegant and expressive Pinot Noir wines. Canterbury/Waipara's Pinot Noir offerings often exhibit red fruit flavors, floral aromatics, and a balanced structure.

2. Chardonnay: Chardonnay is also prominent in Canterbury/Waipara, with vineyards located on sheltered slopes. The region's Chardonnays tend to be elegant and restrained, showcasing flavors of citrus, stone fruits, and also subtle oak influences. 

Central Otago - located in the southern part of New Zealand's South Island, is renowned for its stunning landscapes and cool-climate winemaking. The primary grape variety used in Central Otago is Pinot Noir and has become synonymous with the region. The area's unique climate, characterized by hot summers and cold winters, along with its diverse soils, create optimal conditions for producing high-quality Pinot Noir. Central Otago's Pinot Noir wines are known for their intensity, complexity, and concentration of flavors. They often exhibit dark cherry, raspberry, and plum notes, with hints of spice and earthiness. The wines tend to have a velvety texture, balanced acidity, and refined tannins.