Will landscape fabric kill grass? If you suffer from excessive weeds growing in your lawn or grass growing where you don’t want it to, the fabric is a viable option. This article will discuss landscape fibers’ various uses, advantages, and disadvantages.

Complete Guide of Landscape Fabric for Grass

You will also find out what type of fibers are better suited for a particular problem you might face during lawn care.

Will Landscape Fabric Kill Grass?

Yes, landscape fabric will kill grass if you cover it air-tightly with mulch or stones. Unless the air, light, and overhead water supply to the grass is completely cut off using this material, as a result the grass will not die.

– Killing the Grass

While using black plastic landscaping cloth to kill weeds and cover the ground, it has disadvantages because this fabric and thick mulch on it cover your soil for years will compact the soil and decrease its aeration.

It will also suffocate the essential earthworms that populate gardens. These worms create pathways in the soil to free air and water passage. Without them, your soil will become quite unfavorable for grass and plant growth.

Moreover, this fabric is never a long-term solution for weed control. Its beneficial effects wear off after just one year, despite the manufacturer’s claim otherwise.

Even good-quality porous fiber becomes clogged over time, which prevents water and air from reaching the soil, as this would be the way that the grass would die, because the soil would be left in a compact and an under developing state.

Landscaping seriously affects the growth and germination of plants and grass that spread via seeds. Seeds, of course, do not get to access the soil under the cover of the thick plastic fabric, and it would leave the soil in a stressful situation.

Log-quality fabric will naturally rip, break down faster, and destroy the barrier you created. Even the best-quality fabric will last up to two years and must be replaced. Although it might sound easy, but laying the fabric over the lawn takes time and effort, because it will be tiring for you and for the lawn at the same time.

– Forms

This fabric comes in two primary forms; woven and unwoven. Non-woven fabric works best under rocks and gravel, while woven fabric is better used around plants, trees, and shrubs. That is the reason why it is known as the weed-killing fabric, garden fabric, or weed barrier fabric.

Black Landscape Fabric in a Roll

While it is an effective strategy to keep weeds in control, it is not a long-term solution. In addition, it is also not a very practical solution if you want to grow a normal, healthy lawn. A high-quality weed barrier fabric will last two to three years in case of average weather conditions, and leaving it so will not be beneficial.

– Grasses Not Susceptible To Fabric

Not all grass species or types would react the same when using fabric to get rid of it. Take crabgrass, for example, which is notoriously difficult to get rid of even by this method. This grass will do anything to survive. It sends off tiny roots and shoots through minute holes within the fabric to gain access to light and air.

On the other hand, the Bermuda grass is another type that will send stolons through the fabric for sustenance. Even the best quality, the most resistant fabric will have difficulty keeping this grass from spreading and prolonging its life. Not to mention the fact that many lawn owners find, to their dismay, Bermuda still alive after years of landscaping fiber.


Can Landscaping Fabric Be Beneficial to Grass?

Yes, landscaping grass can be beneficial to grass if it is properly adjusted and set on the lawn, when it is mowed and leveled. On the other hand, it would even help as the fabric type is chosen properly according to the grass.

– Proper Adjustment

Landscape fabric belongs to the textile category of fabric and is made of polyester, linen, or other recycled materials. It is used in lawns to suffocate weeds or unwanted grass growth by blocking its air, water, and light supply. Using this fabric to kill grass or a weeds-infested lawn is common. It is quite a successful procedure when carried out professionally. 

Landscape Fabric in Garden

First, you must measure your lawn as accurately as possible during the first step. Then determine how much fabric you need to eliminate grass and weeds to be perfectly fit upon your lawn.

However, you must always buy extra fabric than you have measured, along with garden staples, this is because the extra fabric compensates for any slits and overlaps and drapes it over the edges of the lawn.

– Lawn Control and Leveling

You better manually pull out the more prominent and thicker bushes of weeds by yourself first. Hold the weeds tightly close to the lawn’s surface, so they come out along with the roots. If you find it hard to remove the weed by hand, then a garden hoe will make your job easier.

Take a rake to your lawn and collect debris like leaves, wood chips, stones, weeds, twigs, etc. You don’t want these things to begin decomposing under the fabric and contribute to further growth, as this would help in the aeration of the lawn. 

Then you must at all costs mow the grass as low as your mower’s setting permits and level the soil. The fabric will rest better on even soil, however as an additional step, add some compost to your soil so that it is properly enriched when you next have access. 

Start rolling the fabric from one corner of the lawn to the other. However, regarding most fabric types, the fuzzy down faces would be placed down, and the smooth side should face up, and this is essential for the proper adjustment of it. 

Lastly, you must start stapling the fabric to secure it tightly in place. As you staple the fabric, you must remember that every foot along its length should be adjusted, whether on the edges or along any slits or overlaps you might have made.

You must place some stones, bricks, or any other heavy small object along the edge of the fabric; otherwise, it might blow off in strong winds. Cover it with a two to three inches thick layer of mulch, preferably dark. Your landscaping is now complete, and it can stay put for several years to come.

– Advantages

Weed and grass control is not your lawn’s only benefit from installing landscape fabric. However, it will keep weeds from erupting over your lawn for at least two to three years, which is a key benefit.

This fabric also helps prevent soil erosion in susceptible gardens. This is because its non-biodegradable fibers act as an impenetrable barrier against rainfall. The soil underneath stays dry and does not get washed away. Some fibers are touted as being porous to rain, but the soil will not get eroded even through these.

Green Grass on the Lawn

This ground cover fabric will also help keep the soil cool in summer and warm during winter. There is no better way of providing temperature control to the soil underneath. 

You also get to use much less herbicide than otherwise. Most chemical herbicides in the market have adverse long-term effects on the soil and the grass. In addition, they are also unhealthy for lawn owners who might have to use them. 

While porous types of ground fabrics allow water to seep through them, they prevent excessive soil moisture evaporation. When using rocks as mulch, this fabric will prevent them from sinking into the soil.

– Fabric Type Matters

There are four basic types of landscape fibers, each with special merits and demerits. It would be ideal if you looked at the condition of your lawn and what you want to achieve at the end, and then decided on the perfect fabric for the job. In addition, when chosen the right form, it won’t kill the grass.

Here, the woven type of fabric is made of tightly woven fibers of linen or polypropylene. It has very small pores through which water and air can pass through. This fabric prevents weeds from growing near trees, shrubs, and flower garden beds. 

On the other hand, the non-woven fabric is made of polyester or polypropylene and allows very little movement of water molecules.

You cannot place it over live plantations because they will die under it, and this is a key notion to be mindful on. In addition, this type is suitable for rock gardens, rock mulches, and pathways through the cracks of which weeds and grass might be beginning to grow.

However, the perforated fibers are even better than the woven ones for flower beds. Some of these come with cuts large enough to plant veggies through. This fabric is a good idea if you want to keep your vegetable garden thriving, and this cannot be used for another option than for vegetable harvesting area.

This specially woven fabric combines long fibers with heat or compressions. Manufacturers claim that its pores are minute enough to let air and water in, but not big enough to let grass and weed stolons grow. This is the fabric you save for killing the most invasive and resistant grass and weeds.


As our final word, you must be mindful that the landscaping fabric can kill the grass, but if it is adjusted properly it can be helpful.

Here is a super quick recap of this article and what we covered:

  • Landscape fabric work by cutting off the air and light supply of weeds, thereby suffocating it over time.
  • You must mow grass, remove large patches of weeds and then level the lawn before putting this fabric on.
  • The fabric should be placed on something other than raised beds or uneven land. Secure it tightly using garden staples and stones, and add mulch two to three inches thick.
  • There is always the risk of your soil compacting under the fabric, and some resistant weeds and grass might even grow to it.
  • Using this fabric is a better option than manually pulling out weeds repeatedly. 

Landscaping might be better than chemical herbicides if you are worried about weeds erupting over and over in your lawn. Use the information in our article to select the fabric type that would best help solve your problem. 

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