Jul 27, Black or Purple Raspberry Bush Pruning. Remove fruiting canes after harvest. Tip prune new shoots in early spring 3 to 4 inches ( cm.) to encourage branching. Top these canes again 3 to 4 inches ( cm.) in summer. Then after harvest, remove all dead canes and those smaller than ½ inches (1 cm.) in bushfelling.buzzg: Bulverde TX. Black and Purple Raspberries. Remove the small, weak canes, leaving only four or five of the largest, most vigorous canes per clump or plant.
Cut back the lateral (side) branches to 12 inches in length for black raspberries and 18 inches for purple bushfelling.buzzg: Bulverde TX. Mar 16, Cut all of the fruited canes down to ground level in late autumn.
At this point, there will be some new, young growth. Tie this in at 4-inch intervals to replace the old. When your plants have grown taller, loop the new top growth over and tie this in too.
How to Prune Autumn-Fruiting Raspberry CanesEstimated Reading Time: 8 mins. Jan 31, Pruning Late Summer/ Fall Raspberries. Raspberries that fruit in late summer/early fall on this season’s growth (primocanes) are best pruned in around February (late winter). Pruning at this time will help to ensure that the plants have had time, over the dormant winter months, to store plenty of carbohydrates in their root bushfelling.buzzted Reading Time: 9 mins. May 06, Raspberries of both summer and fall bearing varieties should be pruned in the winter.
This is because the berry canes are fully dormant during this time, so any pruning will stimulate growth, rather than damaging the current growth pattern.
Raspberries can be pruned any time between November and March%(64).