Will bermuda grass grow under & into a raised bed?
I am installing some raised bed gardens, they're 18 inches high and I'm going to set them 3-6 inches in the ground. Our yard is all bermuda grass, and I completely dug out the sod & soil where the beds are going. On the downhill side of the slope the box only sits 3 inches deep. Should I be worried about the bermuda grass outside the box growing down underneath the box and up into my garden? Or will the rhizomes dig down that deep?