05/03/2026
You cut your fall-bearing raspberry to the ground last March and had a full harvest by September. You did the same to your summer-bearing raspberry — and got nothing all year.
Same genus. Opposite pruning rules. The tag on the plant tells you which.
Summer-bearing raspberries (Latham, Boyne, Killarney) fruit on second-year canes called floricanes. Each cane grows one year, fruits the next summer, then dies. After harvest, the spent floricanes are done — remove them at ground level. But the new green canes growing alongside them are next year's crop. Cut those and you eliminate a full season of fruit before it forms. Leave them, tie them to the trellis, and protect them through winter.
Fall-bearing raspberries (Heritage, Caroline, Joan J) fruit on first-year canes called primocanes. They produce berries at the tips in late summer and fall of the same year the cane emerges. The simplest management is to mow the canes to the ground in late winter before new growth starts. Fresh primocanes emerge in spring and fruit again by August.
- Summer-bearing raspberry — remove only the brown, spent floricanes after harvest. Leave all new primocanes for next year. Trellis to two wires at 2 and 4 feet
- Fall-bearing raspberry — cut canes to the ground in late winter. Let new primocanes fruit in late summer and fall. No winter trellis needed
- Erect blackberry (Ouachita, Natchez) — tip primocanes at 3 to 4 feet in summer to force lateral branching. Remove spent floricanes after harvest
- Trailing blackberry (Marion, Boysen) — train primocanes along a low wire after harvest. Remove spent floricanes immediately. These need strong trellis support and winter protection in cold zones
The summer-bearing canes you mowed in March were carrying the berries you would have picked in July.