Can Cardboard be Use as Liner for a Raised Garden Bed

Can Cardboard be Use as Liner for a Raised Garden Bed

The short answer is: yes.  This an excellent way to recycle and/or repurpose cardboard boxes, if you happen to be building a raised bed and have a few cardboard boxes saved up and available.


With that said, here are a few quick pointers:

  • Clearing the bottom of the raised garden bed of as much vegetation as possible.
  • Cover the entire bottom, no gaps, of the raised bed
  • Overlap up the sides of the garden bed for 6 inches, or more is recommended.
  • Use, at least two, layers, but three or four would be better.
  • Avoid boxes with plastic or other coatings.


The benefit of this repurposing cardboard boxes like this are:

  • The cardboard boxes will provide a barrier for any vegetation you may have missed when you cleared the bottom of the bed.
  • The cardboard will allow water to pass through.
  • The cardboard is biodegradable and will amend the soil.
  • The cardboard is free.
  • Last but not least, the cardboard does not end up in the local landfill.