Knowledgebase
How and when to prune Boysen Berries #879400
Asked July 30, 2024, 11:40 AM EDT
Yamhill County Oregon
Expert Response
Boysenberries are indeed vigorous growers. Yes, you may prune out the fruiting canes once harvest is finished. At that point you could then trellis this years canes which are sprawling everywhere. Yes, you may top them, but it will reduce the amount of fruit produced next year, which might or might not be a problem.
I have the prefect publication from OSU Extension, "Growing Blackberries in Your Home Garden". It answers all of your questions and provides even more detailed information. It's a excellent resource to have on hand.