Sweet Vidalia Onion Update. Did you think that the Vidalia Onion season was over? Well, the good news is you can enjoy the sweet, juicy taste of those Southern Belles from storage until the end of October.Declared the "world's sweetest onion", these "American Beauties" won't make you cry. So beat the heat this barbecue season with Sweet Vidalia Onions. Serve them raw or grilled, tossed in salads or topping your favourite sandwich, burger or pizza. Delicious!And along with the sweetness and great taste, you get all the healthy benefits. Onions contain the antioxidant quercetin, which helps slow down or delay damage to cells or body tissue, helping protect against certain cancers, cardiovascular disease and cataracts.Used as a staple in every cuisine around the world, no cook or backyard chef can survive without the onion - but you can do without the tears. So pick up some Sweet Vidalia Onions and celebrate summer, without the heat!