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Training and Pruning Floricane (Summer Bearing) Varieties
Floricane (summer bearing) varieties carry one crop of fruit on two year-old canes during the summer months. Trellises can be installed during the fall of the first year. The trellis wire support consists of two, three, or four No. 10 or 12 galvanized wires stretched along wooden posts 25 to 30 feet apart in the row. The end posts are anchored or braced since they get the most of the pull. Rather than using wooden posts, you may use steel posts at 20 foot intervals.
After the first season’s growth, tie to the first wire those canes that are long enough. In the following seasons, canes that have produced fruit should be cut out any time from the end of harvest through late winter. Canes should be cut as close to the soil as possible.
The number of canes each plant or hill can support is decided by soil fertility, moisture, and planting distance. Keep all good strong canes each plant will produce. This may mean 8, 10, or with exceptionally good growing conditions, as many as 12 canes per hill. Tie the canes to the top trellis wire. Postpone cutting canes back or tipping them until late winter or early spring after the danger of hard freezes has passed. Canes are usually cut back to 4½ to 5½ feet.
Training and Pruning Primocane (Everbearing) Varieties
Primocane fruiting (everbearing) varieties fruit on canes that come up each year. You can establish a trellis, or let the canes be free standing. We recommend that all raspberries be supported by a trellis. This keeps the fruit off the ground and maintains good aeration of the planting for good disease control.
Primocane varieties fruit in the fall and will produce until the first hard frost. When the crop is over and the canes have dropped their leaves, cut or mow all canes to the ground. Cut as close to the soil surface as possible, leaving no stubs.