I have had a great level of success using boxes as a liner for my garden beds.
- First we remove the grass. You probably don't have to do this step, but my husband likes to, so I let him.
- I then cover the entire area of the new bed with cardboard boxes. The cardboard boxes act as a natural weed barrier, and also help to keep the soil underneath moist. I then really soak the boxes with water. This makes them easier to dig into later.
- I then add a layer of compost (or mulch) over the cardboard boxes and water again.
- Your area is now ready for plants!