Answer: While it may be tempting to plant boysenberries close together, the canes need good air circulation to avoid diseases, and you'll need room to walk among the plants for harvesting, pruning and training. Boysenberries are related to blackberries and as such will develop into quite a thicket if left unpruned. Thinning and pruning are absolutely necessary for best yield. You'll also get a more abundant harvest if the canes don't have to compete with one another for moisture and nutrients. Try 'Nectar', 'Boysen' or 'Thornless Boysen' for really tasty berries in your gardening region.
Q&A Library Searching Tips