The Latham raspberry cultivar has become a standard in early-bearing garden and pick-your-own operations, because of its vigor, productivity, firmness and flavor. he Latham raspberry plants were first cultivated as a hybrid in 1920 in Minnesota and predictably is very cold hardy, reaching the extreme Northern states requirements for cold Winter temperatures. The berries of the Latham raspberry plant ripen in mid-season and continue to ripen for a long period during the raspberry season.The full-flavored aromatic Latham raspberry plants are produced on upright, highly productive plants, and are extremely cold hardy. They ripen evenly during the last days of June and early July covering a three week extended period of maturation. The berry is extremely flavorful being sweet when full ripe and the berries are of medium size. The canes of the Latham raspberry plants are almost thornless, and the berries grow in large clusters.