Asked on Aug 14, 2018
How advisable is using garbage bags under mulch?
by Patricia
Can black garbage bags be used under mulch of wood chips to keep out the weeds?
Suggested Project Book
Hello P~ I'm guessing here...that means fair warning to get a 2nd opinion.
I'm thinking it might work, but over time, the plastic may become brittle and torn.
The plastic used for gardening is a much heavier weight and may be designed to literally weather better.
Check with a local garden supply and see what they recommend. Best of luck!
Garbage bags will never break down. Which is good for weeds but bad for the environment. I like to use weed fabric with metal stakes. It's easy to remove to add new plants and easy to use.
If you’re looking for an inexpensive, environmentally friendly option for a weed barrier try paper garbage bags or craft paper. Even cardboard boxes flattened make a great weed barrier. Each of these will break down over time so it’s earth friendly bit they are also very effective!
They make black plastic on a roll that is cheap. It is thicker than garbage bags, and will keep out your weeds. 3 mill thick is usually good, and the rolls come in a variety of sizes. One word of caution. Termites and carpenter ants LOVE mulch. I would not have it within 8 ft of my house, or you are going to have them destroy your property. This includes areas with wood decks.