Care should be taken by growers to obtain red clover seed of known origin, variety, germination, and purity. Whenever possible, purchase of certified seed of adapted varieties is strongly advised. Varieties such as Altaswede, Norlac, and Ottawa from Canada; Arlington and Lakeland from Wisconsin; Pennscott from Pennsylvania; Chesapeake from Maryland; and Tensas from Louisiana are not as well suited for use in Kentucky as are Kenland, Kenstar, and a few other varieties developed for the general area of Kentucky.
Sigafus, Roy E.; Taylor, Norman L.; and Lacefield, Garry D., "Red Clover Variety Trials through 1982" (1983). Agronomy Notes. 83.