The red cabbage (Brassica oleracea, var. capitata), also called purple cabbage, is an edible cabbage of a highly appreciated slightly sweet taste, characterized by the beautiful purple, magenta or dark purple colour of its leaves. ... It is cultivated, cooked and eaten as the rest of cabbages.
Where it's from?
Farmford's Red Cabbage
United Kingdom, Republic of Ireland, France, Netherlands, Poland, Spain.
(Depending on where it's in season throughout the year).