I planted 2 black raspberry plants which are growing very rapidly. Would it hurt to prune the tips, or should I just let them grow, since this is their first year?
Deschutes County Oregon
Thank you for your black raspberry pruning question. I have attached a link to an OSU Extension publication that you may find helpful to address your question. The article provides a checklist for establishing and caring for your raspberry plant during the first year on page 7. Pruning is reviewed on pages 7-8. Topping the primocanes 3-4 inches during the late spring and early summer is advised and will help to increase lateral branching.
Publication: “Growing raspberries in your home garden”:
We welcome your home garden questions at the OSU Master Gardener plant clinic. If you need additional information, please call and talk with the Master Gardener on duty at 541-548-6088. You can also submit questions with photos to the Master Gardener Plant Clinic email: email@example.com.