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 diameter. Jul 02, To do tip blackberry pruning, use a sharp, clean pair of pruning shears and cut back the blackberry canes to about 24 inches (60 cm.).
If the canes are shorter than 24 inches (60 cm.), simply prune off the top inch ( cm.) or so of the cane.
While you are tip pruning, you can also prune off any diseased or dead canes. The plants listed below are good choices for the rugged coastal conditions of Massachusetts. The Coastal Beach Plant List, Coastal Dune Plant List, and Coastal Bank Plant List give recommended species for each specified location (some species overlap because they thrive in various conditions). Start at the edge of the thicket or tangle of blackberry bushes and work inward toward the center, so you can see what you are cutting.
2. Cut off the outer canes, or blackberry vines, to. Sep 11, the rods will be cut back to or centimeters, as the online portal Gartenjournal advises. The right cut. You can also find many tips for cutting berry bushes in the “Praxishandbuch Pflanzenschnitt” (promotional link). You will also find information on cutting ornamental trees and shrubs.