Answer: In general, branched canes that have borne fruit already can be cut out once the berries have been picked. Any dead canes should also be pruned out. Then thin the plants leaving only the biggest new canes. They will be the most productive next year. Try to end up with about 6 or 8 canes per clump with the canes spaced about 6 inches apart.
You might also refer to the diagrams at the following Web site because different types of brambles (blackberries, raspberries, etc.) require different methods of pruning for optimum production.
Finally, no matter which kind(s) you are growing, be sure to remove and destroy the prunings when you are done.
Good luck with your crop!
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