Has anyone tried using the brown kraft paper that comes in large rolls at the big box home improvement stores as the bottom layer for lasagna gardening? I have some left over from a previous painting project and will try it in an area of lawn I want to convert to a shade bed.
I have tried cardboard in the past and was unhappy with the results. it did smother the grass, but didn't seem to let the ground underneath "breathe" well enuf to soften and improve the soil.