Landscape fabric is a sheet of synthetic material you lay over soil to stop weeds from growing. Most types are made from polypropylene or polyester. It works as a weed barrier fabric by blocking the sunlight that weed seeds need to sprout. Water and air still pass through to reach plant roots underneath.
The first time I unrolled landscape fabric, it felt nothing like plastic sheeting. It has a rough, cloth-like texture that flexes without cracking. You can fold it, cut it with scissors, and pin it to the ground with metal staples. Plastic sheeting feels stiff and tears at the edges, but fabric bends around corners and contours to your soil much better.
The way it works comes down to its fiber structure. Woven types have thin strips of polypropylene locked together in a grid. You can see light through the gaps if you hold a piece up to the sun. Non-woven types use bonded polyester fibers pressed together into a dense mat. Both styles create thousands of microscopic pores that let rainwater drain through and allow gases to move in and out of the soil. Weeds can't push through because the fabric blocks the light they need to germinate.
You will find several types at your local garden center. The industry calls this material geotextile fabric in commercial work. Contractors use it under roads and retaining walls for separation and drainage. Some people know it as a weed mat, which is the same product sold under a simpler name.
Woven Polypropylene
- Best use: Install under gravel paths, driveways, and patios where you need strong support and long-term weed suppression without planting through it.
- Durability: Lasts 15 or more years when buried under aggregate because the interlocking weave resists tearing and holds up under heavy foot traffic.
- Water flow: Allows moderate drainage through the weave gaps but moves water slower than non-woven types, which works fine under stone.
Non-Woven Polyester
- Best use: Place in garden beds and flower borders where you need good water flow and plan to cut holes for plants to grow through.
- Durability: Lasts 3 to 5 years in garden beds before organic matter builds up on top and reduces its weed-blocking ability over time.
- Water flow: Passes water much faster than woven types thanks to its dense but porous fiber structure that works like a sponge.
Biodegradable Natural Fiber
- Best use: Ideal for temporary weed control in vegetable gardens or new plantings where you want the fabric to break down into the soil.
- Durability: Decomposes within 1 to 2 growing seasons as soil microbes eat the natural fibers, leaving no synthetic waste behind.
- Water flow: Lets water pass through with no issues and adds organic matter to the soil as it breaks down over the months.
When you shop for landscape fabric, check three things on the label before buying. First, look at the weight per square yard because heavier fabric (3 ounces or more) lasts longer and resists tearing. Second, find the UV stabilization rating on the package. Fabric exposed to sunlight without mulch on top will break down fast without UV protection. Third, decide whether you need woven or non-woven based on your project.
I made the mistake of buying the cheapest roll I could find for my first garden bed project. It ripped while I was pinning it down and let weeds through within two months. Spending a few extra dollars on a heavier product would have saved me the cost of doing the whole job over again.
Pick woven fabric for any area where you plan to pile gravel or stone on top and don't need to plant through it. Choose non-woven for garden beds where you want strong water flow and easy planting access. Skip the bargain bin rolls that feel paper-thin because they rip during installation and won't last a full season in your yard.
Read the full article: Landscape Fabric: Pros, Cons, and Uses
