Blackberry Plants
Q.

What Is Growing With My Blackberry Plants?

usafsr71 added on June 1, 2011 | Answered

Last year, I planted 5 blackberry plants. This year, there are thick canes that tend to grow straight up growing from the roots. These canes have 5 leaves instead of 3, but look the same shape and size. Should I prune them?

A.
A.Answers to this queston: Add Answer
Heather
Certified GKH Gardening Expert
Answered on June 4, 2011

This sounds like witch's broom. This article will explain more:
https://www.gardeningknowhow.com/ornamental/trees/tgen/witches-broom-disease.htm

You can cut them off. They will not produce fruit.

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