Blackberry Merton Thornless Fruit Bush - 3Ltr PotRubus fruticosus 'Merton Thornless' Blackberry Bush 3Ltr Pot Blackberry 'Merton Thornless' is a mid season, thornless variety that produces an abundance of medium to large, flavour packed fruits. With its compact, manageable growth and lack of thorns, this hardy blackberry is perfect for small gardens, patios, or training along fences and walls. Key Features Thornless canes make harvesting and pruning easy and pain free Produces medium to large