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Firstly, pruning helps to thin the raspberry bushes so that the fruit inside the bushes can obtain enough light. Secondly, pruning allows the remaining canes, which will bear fruit the following year, to grow stronger, producing larger and better quality fruit, and Thirdly, pruning helps to control disease by increasing airflow.
Pruning Raspberry Bushes First Year Pruning: To have 2 crops, first-year canes (primocanes) should be left unpruned. For only a fall crop, mow all the canes down.
When to Prune Raspberry Bushes Different raspberry varieties require pruning at varying times of the year. Clipping away floricanes, primocanes, and new or old canes at the wrong time results in a poor berry harvest or no berries at all.
Find out when to prune raspberry bushes based on the bush type. Dec 28, The rules for pruning summer fruiting raspberries are not complex. Once the shoots fruit, they die, so you can cut them down immediately after harvest. However, summer bearing raspberry pruning is complicated by the fact that even as second-year canes are fruiting, Estimated Reading Time: 2 mins.