Fall is the best time to transplant blackberries but it should be OK to do it now. Cut the canes back to about 5 feet before digging up the plants. Get as much of the roots as you can and put the plants in plastic bags to transport them. Plant them ASAP in the new location. Dig the holes about twice as big as the rootball and add some compost. Make sure to water the plants often until they get established.
Fall is the best time to transplant blackberries but it should be OK to do it now. Cut the canes back to about 5 feet before digging up the plants. Get as much of the roots as you can and put the plants in plastic bags to transport them. Plant them ASAP in the new location. Dig the holes about twice as big as the rootball and add some compost. Make sure to water the plants often until they get established.