Managing Himalayan Blackberry
Hi! I just moved to a place in the Willamette Valley and it is overrun with Himalayan Blackberry. There are a few pockets of native blackberry, but the invasive species dominates. I have spent the last week digging out the invasive from the garden (removing as much root as possible). Now that I can access the beds, I have turned my attention to the thick wall of blackberry surrounding the garden area. I know that I have missed some roots and they will inevitably grow back. Is there any way to prevent the blackberry from returning? I have googled extensively, but no site seems to address long-term, small-scale management. Would planting native, fast growing ground cover or the like compete with the blackberry sufficiently to prevent their return? Or are vigilance and digging the only way? PS: I am looking for methods that avoid herbicides if possible. Thank you so much for your help!!