Mainland wineries are also beginning to acquire or plant vineyards in Tasmania to get some cold weather grapes: grapes planted where it gets hot have plenty of sugars and fruit flavor but no balancing acidity, no structure to the wine.
Brown Bros, located in Victoria on the banks of the Murray, has acquired vineyards in Tasmania:
https://www.brownbrothers.com.au/products/7743-discover-tasmania/ Quote:"It is now more than five years since we acquired vineyards in Tasmania; a big decision for us, after being solidly rooted in Victoria for 120 years. The wines have exceeded our already high expectations and they have been so well accepted we are now planting more vines in the region. A great decision!" Ross Brown.
Do a Google on “French vineyards moving to England” plenty of hits. The brits used to (still do, probably) make “country wines” (fruit wines) now the French are planting vineyards there! NOBODY lightly plants a vineyard or pulls vines to plant another variety! $$$ to pull, $$$ to plant, $$$ lost production for some years. Even more dollars gone if you planted the wrong variety or in the wrong place.
Apart from the cost—you plant new vines you don’t get a proper harvest for years.
I talked to the winemaker at a winery on the West Tamar. He confirmed mainland wineries had bought vineyards in Tassie, was bitter they weren’t making single vineyard wines, guess they needed the fruit for blending with mainland wine. Not sure tho but something like that, that the mainland wineries were not making and marketing Tassie wine. This was during the trip to Tassie I made early Sep last year.