Kohlrabi Purple & White Vienna (Net Wt. 1.3g.) – Matures in 12 days. It's been called the 'stem turnip' because the turnip-like tuber is really an enlargement of the stem 1-3" above the ground. The clear flesh is either white or purple, with a sweeter taste than other members of the cabbage family. Prepared raw in salad, added to soup, roasted on the grill etc. this odd looking vegetable is worth the space in the garden.