|sources =
*"Cabbages. [...] There is a further division into Spring Cabbage, which may be cut either when semi-hearted, as 'spring greens', or when hearted; Summer to Autumn cabbage, cut from June to October; and Winter cabbage." Harrison S.G., Masefield G.B. & Wallis Michael, 1969. ''The Oxford Book of Food Plants''. Illustrations by B.E. Nicholson. Oxford University Press.
*"Spring Cabbage. This term is used for young cabbage, regardless of season. Increasing popularity in recent years has made it worthwhile for growers to extend the period of production; by commencing sowing in June, they have made 'Spring cabbage available from October to June." Harrison S.G., Masefield G.B. & Wallis Michael, 1969. ''The Oxford Book of Food Plants''. Illustrations by B.E. Nicholson. Oxford University Press.
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