Asked on Mar 20, 2019

Would plastic sheeting be ok for use under mulch to keep weeds out?

Gathered In The KitchenJeanne GrunertNaomie Moore aka baileyanddaisey, Castaic CA


7 answers
  • Skilled Thrifty Creatives
    Skilled Thrifty Creatives
    on Mar 20, 2019

    You can buy proper weed barrier at most hardware and garden centers, it sold on a roll and looks like a fine mesh fabric.

  • Dfm
    on Mar 20, 2019

    yes, it should work, there are mulch films that are black plastic that I put out under my above ground container garden. it works very nicely. if you use a clear type, cover it well.

  • Kathy Gunter Law
    Kathy Gunter Law
    on Mar 20, 2019

    It is about the same. I put down some 6 mil plastic about 15 years ago and secured with rocks around my HVAC unit. It has worked great but I wish I had overlapped a bit more.

  • Linda Perlak
    Linda Perlak
    on Mar 20, 2019


  • You certainly can, but over time your mulch may mold if moisture does not evaporate.

  • Jeanne Grunert
    Jeanne Grunert
    on Mar 20, 2019

    No, because the plastic will keep water from percing (draining) into the ground. Instead, use landscape barrier fabric, which you can buy at the garden center. It has tiny holes or openings to allow water to drain through.

  • Gathered In The Kitchen
    Gathered In The Kitchen
    on Mar 20, 2019

    I have used black garbage bags before and it worked great! Just make sure to poke holes in the plastic for water drainage otherwise it will get moldy and ruin your soil

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