[Information based on WSET Level 3 material]
Australia is such a large wine region, and that’s where my Oceanic-wine-focus tends go go. But let us not forget their close neighbor, New Zealand. As you might expect, being a group of islands between the Tasman Sea and the Pacific ocean, the climate here is overall maritime—the asterisk goes here for Central Otago which, centered around the Southern Alps, actually maintains and continental climate.
Other key piece of info, when determining the difference between the two islands: Remember, NZ is in the Southern Hemisphere, so the South Island climate will be a bit cooler; the North Island climate, a bit warmer.
Thinking about the geography of the two islands, most of the vineyards of the South Island tend to be on the eastern side where the vines are protected from rain-bearing winds from the west by mountain ranges that span pretty much right down the center of the island itself—the Southern Alps. (Quick shout out to Nelson who braves it out over there on the left with its east coast pride.) But, again, this is a maritime climate situation—rainfall is inevitable and can be a concern during the growing process. However, it’s noted that most of the soils tend to be free draining, which is excellent for vine vigor. Of course there will be some vineyards located on flatter lands that can be overly fertile (this will happen closer to the ocean), resulting in a bit more greener, herbaceous notes on the wines (specifically in reference to the most planted grape, Sauvignon Blanc).
But it’s noted that due to this excessive vigor and having to work around wet, rainy conditions, New Zealand growers have become well-versed in the art of trellising and other canopy management techniques and that the Sustainable Winegrowing New Zealand initiative has helped set winery standards and assist growers in achieving well-maintained and sustainable vineyards.
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