Tadorna Leek is a dependable and vigorous medium-length leek featuring creamy white non-bulbing elongated shank and sturdy deep-blue fanning leaves. Known for its mild flavor, Tadorna is a wonderful substitution for traditional onions during the winter months. Frost hardy, this is an excellent variety to overwinter in moderate climates or grow in a cold frame, hoop house or green house in colder regions. 100 days. Packet: 100 seeds.