How to stop a raspberry plant from spreading

Written by jaimie zinski
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Raspberry bushes come in several varieties that bear different colour fruits, including yellow, purple, red and black. The fruits grow on canes that grow unchecked without proper pruning techniques. A raspberry bush that is encroaching onto your property will continue to grow and attract unwanted animals. Preventing a raspberry bush from spreading involves pruning the bush and treating it with herbicide.

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Things you need

  • Sharp pruning shears
  • Herbicide
  • Plastic tarp
  • Root barrier

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  1. 1

    Prune any canes that are growing into the unwanted area with a pair of sharp pruning shears. Cut the canes no shorter than 5 feet long if you wish the canes to bear fruit. Otherwise, completely cut back any nuisance canes to ground level.

  2. 2

    Treat any unwanted canes with herbicide. Mix herbicides according to package directions and only spray or paint the canes you wish destroyed. Cover any viable canes with a tarp to prevent them from being exposed.

  3. 3

    Dig a trench that is at least 8 inches deep around the perimeter of the raspberry bush. Treat the trench with a root barrier according to the package directions. The root barrier stops the spread of the root system, which discourages any new raspberry bramble growth in unwanted areas.

Tips and warnings

  • Wear safety goggles and a respirator when cutting back the raspberry bush and treating it with herbicide.

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