Whether you have thorned or thornless ... your blackberry bushes' height, density, and removing any dead parts of the cane after harvesting. Winter is the most common time to prune them back ...

Learn how to grow and care for DownHome Harvest® 'Navaho' Thornless Blackberry, a thornless blackberry that grows upright.

The tips of thornless trailing blackberry canes are the first to show winter kill. Therefore, if you leave the canes unpruned as the plants go into winter, the lower part of the cane may still be ...