60 days. This loose-leafed cabbage dates back to the early 1800s at least. It has beautiful, heavily savoyed, deep black-green leaves that can be 24 inches long. This Italian heirloom is popular in Tuscany and central Italy for making fabulous soups and stews and is one of the most beautiful and flavorful types you can grow. One of the healthiest vegetables we ever tested! It can have up to 3 times the recommended daily vitamin A, plus loads of minerals, calcium, and vitamin C, as well as lots of fiber and protein, truly a miraculous plant from historic Italy.