In January I put down 2 layers of cardboard that overlapped and put 6-8 inches of pine straw on top. I left two full bags of pine straw to use on the next bed, but never had time to come back to it. In May you couldn't tell there was ever cardboard and the grass grew through the two bags of pine straw. The bed with the grass growing through the cardboard was done by another teacher, but I posted it just to show how hardy the grass in Texas can be.
