I have four blackberry starts I planted last spring and each gave off a couple berries. Each plant has sprouted a very long branch or vine that I keep intertwining into the chain link fence. Should I cut this long vine down to 24 inches or leave it alone till spring and then cut it back? Is it too late to prune this? Thanks.
Certified GKH Gardening Expert
This article will help with pruning your blackberry plant: https://www.gardeningknowhow.com/edible/fruits/blackberries/blackberry-pruning.htm