plastic mulch for blackberries and raspberries?
We just put in a row of blackberries and raspberries a couple of weeks ago. After reading up on weed control, I put down black plastic all down the row with a small opening for each plant. Several sites I found online recommended plastic as a weed barrier in brambles. But I was thinking about it later, and they send up new shoots to spread, won't the plastic prevent this? Should I remove the plastic completely, or cut an opening (how big?) around each plant? Thanks.