Can We Use a Ground Cover Tarp Instead of Landscape Fabric?

The short answer is yes, but only for temporary weed suppression. While ground cover tarp is an excellent, low-cost tool for smothering existing grass and weeds before planting, a standard waterproof tarp is entirely unsuitable as a permanent layer around living plants or under hardscapes.

At EPP Vietnam, we manufacture export-grade woven fabric solutions—from heavy-duty polyethylene (PE) tarps to high-density woven polypropylene (PP) ground cover fabrics. Understanding why these two materials are not interchangeable will help you protect your soil health, prevent drainage disasters, and choose the right product for your project.

Choosing between a ground cover tarp and landscape fabric depends on water permeability and whether your application is temporary or permanent.

Ground Cover Tarp vs. Landscape Fabric at a Glance

To understand why tarps and landscape fabrics serve different purposes, consider their core functional differences:

Matching your project requirements with the right material prevents costly installation failures and ensures proper soil ecosystem management across your land.

Selecting the right tarp or landscape cloth requires balancing water drainage against light suppression requirements.

Key Differences: Ground Cover Tarp vs. Landscape Fabric

1. Water & Air Permeability

The biggest difference between the two materials is moisture and oxygen transmission:

• Landscape Fabric: This geotextile is woven or needle-punched with microscopic pores. Installing a porous fabric weed barrier for agricultural beds allows rainwater, liquid fertilizers, and oxygen to pass directly through to the soil, keeping beneficial earthworms alive and feeding plant roots.
• Standard Tarps: Coated polyethylene tarps are completely waterproof and air-tight. They block rain from reaching the soil, prevent natural evaporation, create stagnant water pools on the surface, and ultimately cause plant roots underneath to rot.

2. Intended Use: Temporary Smothering vs. Permanent Coverage

Knowing how long the material will remain on the ground dictates which product you should buy:

• Ground Cover Tarps (Short-Term Occultation): Tarps work best for 4 to 8 weeks before planting. By blocking 100% of sunlight (0% light transmission), a heavy-duty black tarp starves existing grass, weeds, and weed seeds of light, clearing the plot naturally without chemical herbicides. Once the weeds are dead, the tarp is removed so you can plant.
• Landscape Fabric (Long-Term Integration): Landscape fabric is built to remain in place for years. It is laid down permanently, covered with mulch or gravel, and cut with X-shaped slits where crops or decorative plants grow through.

3. Drainage & Puddling Issues

Placing a solid, non-porous tarp under gravel, decorative stone, or permanent hardscapes is a major landscaping mistake. Because water cannot drain downward through the tarp, heavy rainfall creates localized puddling, muddy runoff around the borders, and unstable gravel shifting under foot traffic.

Does Tarpaulin Stop Weeds in the Garden?

Yes! A heavy-duty black tarpaulin for weed control is highly effective when used correctly for soil preparation.

1. Mow the Area: Cut existing grass and weeds as low to the ground as possible.
2. Moisten the Soil: Water the area thoroughly so dormant weed seeds are encouraged to germinate under the tarp.
3. Cover with an Opaque Tarp: Secure a black weed control tarp tightly over the plot using heavy landscape staples or sandbags.
4. Wait 4 to 8 Weeks: Deprived of light and subjected to trapped warmth, germinated weeds use up their root energy and decompose into the soil.
5. Remove & Plant: Pull back the tarp to reveal a clean, weed-free seedbed ready for planting.

An black heavy-duty tarp weighted down with stones to carry out soil occultation and kill weeds before planting.

When to Use a Tarp vs. Landscape Fabric: Practical Scenarios

Deciding whether to install a tarp instead of landscape fabric depends on whether your project requires short-term soil conditioning or long-term structural ground integration.

Best Use Cases for Ground Cover Tarps

A high-density ground cover tarp is the ideal solution for temporary, high-impact agricultural preparation:

• Pre-Planting Bed Preparation: Smothering cover crops and weed seedbanks 30 to 60 days before spring planting.
• Inter-Row Pathway Protection: Creating heavy-duty, mud-free walking channels between active crop rows.
• Over-Winter Soil Preservation: Shielding exposed topsoil from nutrient leaching caused by heavy winter rains and snowmelt.

For harsh winter environments, selecting a weather-resistant tarp ensures your soil stays protected against tearing under snow loads.

Best Use Cases for Landscape Fabric

A durable permeable ground cover or weed mat is designed for permanent or multi-season installations:

• Under Decorative Gravel, Mulch, and Hardscapes: Preventing stones from sinking into subsoil while blocking weeds from growing upward.
• Perennial Crop Fields & Fruit Orchards: Suppressing weeds around tree drip-lines while allowing liquid fertilizer and rainwater to reach deep root systems.
• Commercial Nurseries & Greenhouses: Serving as a clean, tear-resistant floor layer that withstands heavy foot traffic, plant pots, and rolling cart wheels.

To select the exact polymer specification for your facility, explore our technical breakdown on suitable tarpaulin material.

A macro view highlights the micro-porous weave of a breathable landscape cloth compared to a coated waterproof tarp.

Critical Mistakes to Avoid When Substituting Landscape Fabric with Tarps

Substituting a landscape fabric alternative like an opaque tarp without considering site engineering can compromise your entire project.

Mistake 1: Burying Waterproof Tarps Under Decorative Gravel

Placing an impermeable polyethylene tarp underneath decorative stone or bark mulch creates a hydrostatic trap. Rainwater collects on top of the smooth tarp surface, transforming your landscape feature into a muddy, stagnant bog that breeds mosquitoes and rots plant roots. Always use a micro-porous non-woven landscape fabric or dense woven landscape fabric under hardscapes.

Mistake 2: Using Non-UV Treated Tarps Outdoor

Generic, low-cost plastic sheets lack essential UV-stabilizing additives. Within 90 to 180 days of solar exposure, the plastic photo-oxidizes, tearing apart into thousands of tiny flakes that pollute farmland topsoil. Ensure your supplier provides certified UV-stabilized materials built for extended outdoor exposure.

Mistake 3: Improper Anchoring in High-Wind Regions

Because a ground cover tarp is non-permeable, wind cannot pass through its surface. Unanchored tarps act like sails in heavy storms, pulling up perimeter stakes and destroying nearby crops. Secure your tarps every 1 to 1.5 meters using heavy-duty steel landscape staples, sandbags, or soil berms.

In severe weather zones, review proper anchoring and tethering techniques outlined in our guide on emergency tarp for roof installation.