USU Student Organic Farm
Historically, kale has been particularly important in colder regions due to its resistance to frost. In nineteenth century Scotland, kail was used as a generic term for 'dinner' and all kitchens featured a kail-pot for cooking. In fact, in the 18th century, many Scottish homes had a kale-yard.
Sherwood, Brianne; Hunt, Sara; Sorenson, Crista; Heineman, Bethany; Beyers, Blake; and Workman, Ashley Walker, "Kale" (2010). USU Student Organic Farm Newsletter. Paper 27.