(1 Gallon Bare-Root) TRIPLE CROWN Blackberry, yields lots of large berries that offer a tasty blend of sweetness and tartness. Very hardy variety that is thornless and easy to pick. (1 Gallon Bare-Root) TRIPLE CROWN Blackberry, yields lots of large berries that offer a tasty blend of sweetness and tartness. Very hardy variety that is thornless and easy to pick. Uses: Jams, Jellies, pies and fresh eating. Self-pollinating Height 4-5 ft Width 3-4ft Hardy in Zones 5-9 Full Sun Ripens/Harvest Early August