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Pruning Raspberries

The right pruning techniques ensure a good harvest

By Lee Reich
Unpruned raspberries

A row of unpruned Fallgold raspberries. See a photo of the pruned row at the end of the article.

In summer, most berries demand nothing more than picking. But when it comes to raspberries, some pruning sets the stage for bountiful berries again next year.

Each raspberry cane is biennial, dying at the end of its second year. I grow both types of raspberries:

  • Summer-bearing raspberries have canes that fruit in midsummer of their second year
  • Everbearing raspberries (also called fall-bearing) have canes that begin to fruit in late summer of their first year; they fruit again in midsummer of the following year. They are called everbearing because their midsummer fruits on second-year canes are followed, the same season, by late-summer and fall fruits on first-year canes. New canes grow every year, so any raspberry planting has both one- and two-year-old canes.

When the midsummer raspberry crop ends, I cut out the canes that bore fruit — right to the ground. This is the end of their second year, so they are beginning to decline anyway.

Cutting out these canes makes room for the young canes that will bear raspberries later in the summer or next year, depending on the type — everbearing or summer-bearing. This pruning technique also ensures that each cane will bask in abundant sunlight and get good air circulation, which limits the potential for fungus problems.

While I have my pruning shears in hand, I also cut down any errant young canes. I grow raspberries in a row that I let grow no wider than about a foot, rather than a raspberry "patch." By keeping relatively narrow rows, I know that each cane will bask in sunlight and breezes.

I don’t have to do any of this the pruning in summer. I could do it anytime until early next spring. But why wait? It’s quick, it’s easy, it reduces the potential for disease, and it leaves the raspberry patch looking neat.

Pruned raspberries

A row of Fallgold raspberries, after the canes that fruited have been pruned out.