New tricks with an old tool: Landscape fabric (2024)

As I wandered the fields of our Maine farm before a winter windstorm, grabbing tattered scraps of greenhouse plastic and spun-bonded row cover, I noticed a piece of heavy black landscape fabric. It was in pretty good shape for having sailed across a pasture and wrapped itself around a tree.

We usually avoid landscape fabric, which, unlike an organic mulch such as seaweed or straw, contributes nothing to the life of the soil.

But as a temporary weed barrier, it is more effective than these. This year, it helped me smother some intractable dandelions and blackberries in the asparagus bed. We used it only in the wide paths between the rows, so the spears could come up unobstructed, but even so, it cut our work in half.

In our small vineyard we let it cover all the area between the trunks of the vines in order to kill grass that had come in, then did the same thing for a row of apple trees next to the vegetable garden.

The product’s chief benefit is that it lets in air and moisture (and keeps that moisture in) while blocking the light that would promote weed growth.

Made from the same polypropylene that’s used for rope, it is super-strong; you can walk on it and it won’t tear. We use the 5-ounce woven type, sold by a number of companies such as A.M. Leonard and Johnny’s Selected Seeds, rather than the lighter stuff you find in box stores.

Landscape cloth is like a thin rug. The slightly shiny side is meant to face up; the duller fuzzy side to face down, because that adheres well to the soil. But we go fuzzy-side-up because it is less reflective and better-looking that way — and still stays put if well-anchored.

That means covering it securely along all the corners and edges, either by burying them or by laying down lengths of rebar. Soil staples, like giant hairpins are sold for pinning the fabric to the ground. If left behind, though, these can get caught in a rototiller’s tines.

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Once it’s laid, try to keep the fabric’s surface free of soil, in which small weeds can sprout (this is why mulch over landscape fabric in perennial beds is only partially successful in keeping weeds out).

In late fall, we take up the whole blanket, apply compost or manure to the area, and then leave the soil exposed over the winter to the natural tillage wrought by frost.

To my mind, landscape fabric in the food garden is something to use in a weed or grass emergency — the quick fix that saves the day.

New tricks with an old tool: Landscape fabric (2024)

FAQs

Why not use landscape fabric? ›

Landscape fabric inhibits water from getting to the roots of your plants. With fabric, plants are forced to grow roots along the surface directly under the fabric to get water. Plants will struggle and many will eventually die, 2.

Is there a right and wrong side to landscape fabric? ›

Lay the Landscape Fabric

When laying landscape fabric, fuzzy side face down is the standard to capture soil moisture. Make sure to read the instructions on your landscape fabric to determine which side should touch the ground.

Does landscape fabric go shiny side up or shiny side down? ›

Landscape cloth is like a thin rug. The slightly shiny side is meant to face up; the duller fuzzy side to face down, because that adheres well to the soil. But we go fuzzy-side-up because it is less reflective and better-looking that way — and still stays put if well-anchored.

Should you double layer landscape fabric? ›

It cultivates healthier soil for plant growth. You will notice that your kitchen and garden will become healthier after installing landscape fabric. Double-layer landscape fabric in the garden is never a good idea. It promotes unhealthy soil by preventing water, air and nutrients from entering the soil.

What is better than landscaping fabric? ›

Cardboard makes an excellent, biodegradable, plant-friendly alternative to using conventional landscape fabric. Sheet mulching is what inspired the idea of using cardboard as a way to control growth of weed. Before using it, make sure to remove all staples, pins, tape and any inorganic material attached to the box.

Can I use cardboard instead of landscape fabric? ›

Using cardboard or newspaper as a natural weed barrier can allow you to kill a very large area of weeds and grass without using any chemicals or herbicides.

Can I put soil over landscape fabric? ›

Soil and dust that blows onto the top of the fabric can build up and eventually support the germination of weed seeds. Any organic mulch applied over the fabric inevitably breaks down into soil, creating fertile ground for weeds and grasses.

Do you need to remove grass before putting down landscape fabric? ›

Yes, if you place landscape fabric on top of a lawn it will kill whatever is underneath. To kill grass using landscape fabric, simply pin the fabric down on the grass you intend to kill and leave it for a few months. Sunny, hot months will take less time than cold, wet months.

Can perennials grow through landscape fabric? ›

Types Of Perennials That Can Grow Through Fabric

Perennial herbs are often tolerant enough to push up between rows of landscape fabric. This includes sage, oregano, thyme, lavender, chives and mint. Many flowering perennials such as daisies, poppies, and black-eyed Susan's will also thrive in these conditions.

How to stop weeds from growing through landscape fabric? ›

Make sure to allow a few inches of overhang on all sides. Lay the fabric onto the soil surface so that the edges of the pieces overlap each other by 6-8 inches. This will prevent weeds from growing through the seams and allow for a little movement.

Does water go through landscape fabric? ›

Permeability - At the store, landscape fabric usually can be found in two forms: 1) a woven fabric created by weaving thin strips of plastic and 2) a spun fabric created using polyester fibers. These landscape fabrics are somewhat porous in both cases, meaning they allow water and air to move through.

How close to put landscape fabric around plants? ›

A good rule to remember when installing landscape fabric is to set it a few inches close to the plant roots but never too close. It will warm up the soil too much during the summer season and inhibit the exchange of air, water, and nutrients.

What are the cons of landscape fabric? ›

Pros and Cons of Landscape Fabric
AspectProsCons
Environmental ImpactSome types are made from recycled materials.Often contains petroleum and other chemicals; not biodegradable.
AestheticsCan be covered with mulch for a neat appearance.Becomes unsightly over time as it frays and surfaces through mulch.
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Apr 18, 2024

What landscape fabric do professionals use? ›

Woven landscaping fabric is the most commonly used type. It's typically made from polypropylene or linen fibers that are woven together to create a durable, semi-permeable material.

Can I use an old sheet instead of landscape fabric? ›

Eco-gardeners sometimes advocate using old cotton bedsheets and curtains as a plastic-free alternative to landscaping fabrics.

Does landscape fabric leach chemicals? ›

It contains petroleum

It seems almost inevitable that some of these chemicals will leech into the ground, contaminating the soil. Since we have not seen BPA-free landscaping fabric, it is probably best to assume this stuff is not safe for the environment.

Why are weeds growing through landscape fabric? ›

Landscape fabrics are less effective when used under organic mulch such as wood chips or bark. As this mulch decomposes, it effectively creates a new layer of soil above the landscape fabric. Before long, weeds seeds will germinate and send roots through the fabric itself, making those weeds more difficult to uproot.

Does landscape fabric affect drainage? ›

There are many benefits of landscape fabric, but its main purposes are to separate soil, stabilize, drain, and filter water or runoff.

Can you just cover weeds with landscape fabric? ›

Yes, you can use landscape fabric to suppress weeds. It works by creating a barrier between the soil and the weed, preventing light and water from reaching the weed. Be sure to overlap the fabric and use a lot of pins to secure it in place. Additionally, you should remove existing weeds before installing the fabric.

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