70 days. Gorgeously crinkled, savoy-type leaves are produced within dense heads. These are round to slightly fl attened, and often weigh 3 pounds or more. This European heirloom variety is seldom available in the US. Mainly grown for fresh use, and has been since the turn of the 20th century, when it was a favorite at Paris markets. Usually grown for a fall crop, where its earliness, mild flavor and tolerance to cold are especially valued.