Boysenberry, Blackberry, Raspberry soil PH
I recently bought some Boysenberry plants that should be arriving any day now. Can anyone tell me what that PH needs to be for Boysenberry's to produce? I live in a Idaho where the soil has a tendency to have a PH around 8. Also, what does the PH need to be to successfully grow Blackberries and Raspberries? I have grown raspberries in the past with a lot of success without having to lower the PH. Will they produce even more if I'm able to lower the PH?