Weeds—they’re the bane of every homeowner’s existence, especially when it comes to gravel landscaping. You spend hours meticulously plucking them out, only to find them rearing their ugly heads again just days later.
While completely eliminating weeds from your gravel may be a pipe dream, there are several proven strategies you can employ to minimize their growth and keep your landscaping looking neat and tidy.
So, roll up your sleeves, grab your tools, and get ready to fight back against those pesky plants. Here are the top 10 tricks to prevent weeds from taking over your gravel:
1. Lay a Landscape Fabric Barrier
One of the most effective ways to prevent weeds from sprouting in your gravel is to install a landscape fabric barrier underneath.
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This permeable material allows water to drain through while blocking sunlight and creating an inhospitable environment for weed seeds. Simply lay the fabric over the soil before adding your gravel layer, overlapping the edges by at least 6 inches to ensure complete coverage.
When selecting a landscape fabric, opt for a heavy-duty, non-woven variety that is at least 3 ounces per square yard in weight. This will provide optimal durability and weed suppression while still allowing proper drainage.
2. Use a Pre-Emergent Herbicide
Applying a pre-emergent herbicide to your gravel can help prevent weed seeds from germinating in the first place. These products work by creating a chemical barrier on the surface of the gravel that inhibits seed development.
For best results, apply the herbicide in early spring before weeds have a chance to sprout, and reapply as directed by the manufacturer throughout the growing season.
Be sure to choose a pre-emergent herbicide that is safe for use around any nearby plants you wish to keep, and always follow the application instructions carefully to avoid damage to your landscaping.
3. Install Edging around Your Gravel
Installing edging around the perimeter of your gravel can help prevent weeds from encroaching from neighboring lawns or garden beds. Options include plastic, metal, or stone edging, all of which create a physical barrier that stops weed roots from spreading into your gravel.
When installing edging, dig a trench about 4 inches deep and wide enough to accommodate your chosen material. Place the edging in the trench and backfill with soil, tamping it down firmly to hold the edging in place.
4. Regularly Remove Any Visible Weeds
For small weeds, simply pulling them out by hand can be effective. Use a weeding tool or gloves to protect your hands and ensure you remove the entire root system to prevent regrowth.
For larger or more stubborn weeds, you may need to use a weed killer or flame weeder to fully eradicate them. Be cautious when using these tools near desired plants and always follow the manufacturer’s safety guidelines.
5. Apply a Natural Weed Killer
If you prefer a more eco-friendly approach to weed control, consider using a natural weed killer in your gravel.
One effective option is to spray the weeds with a solution of one gallon of white vinegar, one cup of salt, and one tablespoon of dish soap. The acetic acid in the vinegar and the dehydrating properties of the salt work together to kill the weeds, (ref) while the dish soap helps the solution adhere to the plant leaves.
Another natural option is to pour boiling water directly on the weeds. This method works best on young, small weeds and is most effective when applied in the heat of the day.
6. Use Gravel of the Proper Depth
A layer of gravel that is too thin will allow weed seeds to easily take root in the underlying soil, while a layer that is too thick can be difficult to maintain and may not drain properly. The ideal depth for most gravel applications is between 2 and 4 inches.
When adding new gravel to your landscaping, be sure to choose a variety that is appropriate for your specific use case. For high-traffic areas like driveways and pathways, opt for a sturdy, angular gravel that will compact well and resist shifting over time.
7. Keep Your Gravel Clean
Regularly cleaning your gravel can help prevent weed seeds from taking hold and sprouting. Use a leaf blower or rake to remove any fallen leaves, twigs, or other organic debris that may decompose and provide a fertile growing medium for weeds.
If your gravel becomes heavily soiled or stained, you can use a pressure washer to clean it more thoroughly. Be sure to use a low-pressure setting and hold the nozzle at least 12 inches away from the surface to avoid dislodging the gravel.
8. Maintain the Area around Your Gravel
In addition to keeping your gravel clean, it’s important to maintain the surrounding area to prevent weed seeds from blowing or spreading into your gravel. Regularly mow any nearby lawns and trim back any overhanging trees or shrubs.
If you have neighboring garden beds, consider installing a physical barrier like edging or a buffer strip of mulch to stop weed roots from creeping into your gravel.
9. Consider a Chemical Weed Barrier
For particularly stubborn weed problems, you may want to consider installing a chemical weed barrier in addition to a physical barrier like landscape fabric. These products typically come in granular or liquid form and are applied directly to the soil before laying your gravel.
Chemical weed barriers work by creating an invisible barrier that prevents weed seeds from germinating and is resistant to environmental degradation. They can be very effective but must be carefully reapplied each year according to the product instructions.
10. Be Persistent
No matter which weed prevention methods you choose, it’s important to remember that controlling weeds in gravel is an ongoing process. Even the most effective strategies will require regular maintenance and occasional touchups to keep your gravel looking its best over time.
Davin is a jack-of-all-trades but has professional training and experience in various home and garden subjects. He leans on other experts when needed and edits and fact-checks all articles.