 But by the early 21st century, declining plantings in those two varieties and the growing popularity of Torrontés allowed it to surpass them and become Argentina's most widely planted white variety where it continued to be as of 2008.The different Torrontés varieties have developed niche in different areas of Argentina.Torrontés Riojano is widely grown in the La Rioja and Salta provinces of northern Argentina and is, in fact, the single most widely planted variety (both red and white) in La Rioja.