Blackberry Bush Won’t Produce Fruit

Question

I planted what I was told was thornless blackberries 2 years ago. The bushes have grown and spread out, but they never bloom and make berries, just brown stubs.

Answer 1

There are several reasons that a blackberry might not grow fruit that you can read about here: https://www.gardeningknowhow.com/edible/fruits/blackberries/blackberries-not-fruiting.htm