The thornless plants produce some of the largest fruits and highest yields of any of the thornless blackberries. The extra-large, glossy, black berries are sweet, juicy and flavorful, too. They're great for eating fresh, and also delicious when cooked into cobblers, desserts and preserves. The flowers are extra-fertile, so you get more cone-shaped berries that are perfectly formed. The canes stand erect. Fruits ripen in mid to late June. Zones 5-9.