When we started the garden we did put down newspaper and cardboard boxes. But this grass that we have is very determined it will put out growth up to something like 3 feet to find a foot hold. It came in from outside the garden and not from under the newspaper. Also we had put some grass clippings as one of the layers and It grew from that too. What a mess. The stuff is trying to grow all throughout my compost pile too. Mean old grass.

Mary