Part VI · New Zealand · 3 min
Marlborough and the South Island whites
Sauvignon Blanc that tastes nothing like the French original, and the valleys that make it.
When Marlborough Sauvignon Blanc first reached British tastings in the mid-1980s, the reaction wasn’t universally admiring. It was too loud, too tropical, too obviously something. Cloudy Bay, founded in 1985, converted that shock into a cult, and within a decade the style had its own name and its own imitators in Chile, South Africa and the south of France.
Why it tastes like that
Two families of compounds, both amplified by the same conditions.
- Methoxypyrazines - the green side: capsicum, cut grass, tomato leaf. They come from the grape and degrade in sunlight and heat, so cool climates keep more of them.
- Thiols - the tropical side: passionfruit, grapefruit, and a green, sappy note usually described politely as "boxwood". These are almost odourless in the grape and released by yeast during fermentation.
Marlborough gets an unusual combination: intense sunlight, cold nights, a long dry autumn and free draining stony soil. That preserves the green compounds while pushing thiol precursors unusually high. The result is a wine that’s simultaneously herbaceous and tropical, which almost nowhere else pulls off.
The two valleys
Marlborough isn’t one place, and the distinction is the first thing to learn if you drink it regularly.
| Wairau Valley | Awatere Valley | |
|---|---|---|
| Position | The original, inland and warmer | South, higher, closer to the coast |
| Character | Riper, tropical, passionfruit | Cooler, saline, herbaceous, more acid |
| Soils | Deep gravels and silt | Stonier, drier, windier |
| Ripens | Earlier | Up to two weeks later |
Most commercial Marlborough is blended across both, which is deliberate: the Wairau supplies fruit weight and the Awatere supplies acid and cut. Single-valley bottlings are where you taste the difference clearly.
What else Marlborough does
Sauvignon Blanc dominates so completely that the rest is easy to miss. Chardonnay is increasingly good and increasingly restrained. Pinot Gris and Riesling both work well in the cool sites. Pinot Noir grown here is lighter and more red fruited than Central Otago’s, and a significant amount of it goes into méthode traditionnelle sparkling wine, which is one of New Zealand’s genuine bargains.
The rest of the South Island
- Nelson - just over the hills from Marlborough, wetter and hillier. Excellent Chardonnay, Pinot Noir and aromatics from a small number of quality focused producers.
- North Canterbury / Waipara - limestone soils, a warm dry northwesterly wind, and the country’s most interesting Riesling and Pinot Noir. Small, and increasingly the region critics get excited about.
- Waitaki Valley - tiny, right on the edge of ripening, limestone. Difficult in most years and remarkable in the good ones.