Question....I am presently rehab. my east shoreline some 500' or so with riprap rock into the water and up the bank some 4' creating a buffer zone for shrub/plants along this area up the bank around the grass. I used landscape fabric to help control the willows that I cut down (only small shrub type willows but left the root systems) along the waterline. Will the willows eventually break through this fabric and layers of rock???? Any thoughts/help would be greatly appreciated.

Rowly