Comes From: England
The swollen orb is not a root, like a turnip or swede, but is a swollen stem base, which grows above ground. Kohlrabi stores energy in the summer in its swollen stem base, so it can survive the winter dormant. It is a biennial plant, so if left in the ground it will then flower the following spring. Plants can be harvested anytime after the summer, but it is best saved for the winter to add some variety to winter dishes. It can be eaten raw (grated or thinly sliced into salads), braised, roasted or added into soups or stews.
Kohlrabi is best eaten when the size of a tennis ball, and should always be peeled. The stalks and leaves that are left over can be cooked and eaten like cabbage.
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