How to Get Weeds Out of Cracks: Expert Tips for Effective Removal

How to Get Weeds Out of Cracks?

To get weeds out of cracks, there are several effective methods you can try.

One option is to pour boiling water directly onto the weeds, which will cause them to wilt and die.

Another method is to create a salt solution by mixing salt with water and then applying it to the cracks.

Vinegar can also be used as a weed killer by spraying it on the weeds.

Baking soda and borax can be effective as well, as you can sprinkle them onto the cracks and weeds.

Additionally, commercial weed killers specifically designed for cracks can be purchased and applied according to the instructions.

Lastly, if the cracks are in a paved or concrete area, sealing them with roofing cement can help prevent weeds from growing.

Key Points:

  • Boiling water can be poured onto weeds to kill them.
  • Salt solution made by mixing salt with water can be applied to the cracks to eliminate weeds.
  • Vinegar can be sprayed on the weeds to act as a weed killer.
  • Baking soda and borax can be sprinkled on cracks and weeds to get rid of them.
  • Commercial weed killers designed for cracks can be purchased and used as instructed.
  • Sealing cracks with roofing cement can prevent weed growth in paved or concrete areas.

Did You Know?

1. Did you know that weeds growing in cracks are commonly known as “pavement plants”? These resilient plants have adapted to survive in harsh conditions, with their roots penetrating and spreading throughout the cracks in concrete or pavement.

2. While many people consider weeds growing in cracks as a nuisance, some gardeners actually intentionally plant certain types of weeds, such as moss and thyme, in cracks to create a unique and charming look in their gardens or pathways.

3. One effective method to prevent weeds from growing in cracks is by using vinegar. Spraying a mixture of white vinegar and water directly onto the weeds can be a natural and eco-friendly way to eliminate them.

4. In some cases, certain types of weeds growing in cracks can actually help prevent erosion. Their roots can help stabilize the surrounding soil and prevent the cracks from widening, particularly on slopes or areas prone to erosion.

5. Weeds growing in cracks can be edible! Surprisingly, some common garden weeds like dandelion, purslane, and lamb’s quarters are not only edible but also highly nutritious. So, next time you encounter these ‘weeds,’ consider using them in your next culinary adventure!

Boiling Water

Weeds can be a persistent problem, especially when they start growing in cracks around your home. One effective and eco-friendly method to get rid of these unwanted plants is by using boiling water. Boiling water is a simple and cost-effective way to kill weeds without the need for any chemical products.

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To use boiling water for weed removal, simply bring a pot of water to a boil on your stove. Carefully pour the boiling water directly onto the weeds growing in the cracks. The hot water will scald and kill the weeds, shriveling them up in a matter of minutes.

Keep in mind that boiling water can also harm desirable plants, so it is important to be cautious and only apply it to areas where you want to eliminate weeds.

  • Boiling water is an effective and eco-friendly method to kill weeds.
  • Simply bring a pot of water to a boil on your stove.
  • Carefully pour the boiling water directly onto the weeds.
  • Only apply boiling water to areas where you want to eliminate weeds.

“Boiling water is a simple and natural way to eliminate weeds without using chemicals.”

Salt Solution

If you’re looking for a more targeted approach to weed removal, a salt solution can be a powerful and effective option. Salt is known for its ability to dehydrate and kill plants, making it an ideal solution for killing weeds growing in cracks.

To create a salt solution, simply mix a cup of salt with a gallon of hot water and stir until the salt is dissolved. Transfer the solution to a spray bottle and apply it directly onto the weeds, being careful to avoid any desirable plants. The salt will draw out moisture from the weeds, causing them to wither and die over time.

It’s important to note that salt can also have a long-lasting impact on the soil, so it’s advisable to use this method sparingly and avoid it in areas where you plan to grow other plants.


Vinegar is a versatile household ingredient that can be used for a wide range of cleaning and gardening purposes. When it comes to weed removal, vinegar can be highly effective due to its acidic properties.

To use vinegar as a weed killer, simply pour undiluted white vinegar into a spray bottle and spritz it directly onto the weeds. The acetic acid in the vinegar will break down the plant cells, causing the weeds to wilt and die. For tougher weeds, you can also add a few drops of dish soap to the vinegar solution to help it adhere better to the leaves.

Be aware that vinegar can be harmful to plants you want to keep, so take care to apply it directly to the weeds and avoid spraying it on desired vegetation. Additionally, vinegar may slightly lower the pH level of the soil, so regular use in the same area should be avoided.

Baking Soda

Baking soda, or sodium bicarbonate, is a common household ingredient that can also be used to effectively combat weeds. It disrupts the cellular structure of weeds, causing them to dry out and die.

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To use baking soda as a weed killer:

  • Sprinkle a generous amount directly onto the weeds growing in the cracks.
  • Make sure to thoroughly coat the leaves and stems of the weeds.
  • After a few days, you will notice the weeds wilting and turning brown.
  • At this point, they can be easily removed by pulling them out or using a hoe.

However, it’s important to be cautious when using baking soda as it is a non-selective herbicide, meaning it can harm both weeds and desirable plants. Avoid getting it on any plants you want to keep.

“Baking soda is a non-selective herbicide, meaning it can harm both weeds and desirable plants.”

Borax Solution

If you’re dealing with persistent weeds in cracks, a borax solution can be a powerful and long-lasting weed killer. Borax is a natural mineral that acts as a desiccant, drying out the plants and inhibiting their growth.

To create a borax solution, mix 10 ounces of powdered borax with 2.5 gallons of water. Stir until the powder is fully dissolved. Transfer the solution to a spray bottle and apply it to the weeds, saturating the leaves and stems. Allow the solution to dry, and over time, the borax will dehydrate the weeds, causing them to die.

It’s important to exercise caution when using borax, as it can be harmful to children, pets, and certain plants. Ensure there is no overspray on to surrounding vegetation and keep the solution away from areas where it may run off into water sources.

Commercial Weed Killers

If natural remedies are not providing the desired results, commercial weed killers can effectively remove weeds from cracks. These products often contain herbicides specially formulated to kill weeds without harming other surrounding plants.

Prior to using a commercial weed killer, carefully read and follow the instructions on the label. Ensure appropriate protective clothing, such as gloves and goggles, are worn during application. Apply the product directly onto the weeds, targeting the leaves and stems.

Keep in mind that some commercial weed killers are non-selective, meaning they can harm desirable plants as well. Take care to avoid overspray and be cautious when using them in areas near desired vegetation.

  • Use commercial weed killers if natural remedies fail
  • Follow instructions on the label
  • Wear protective clothing during application
  • Apply directly onto weeds’ leaves and stems
  • Be cautious of non-selective weed killers
  • Avoid overspray and protect desired vegetation


Removing weeds from cracks requires a proactive and persistent approach. By utilizing methods such as boiling water, salt solutions, vinegar, baking soda, borax solutions, and commercial weed killers, you can effectively remove unwanted weeds and prevent them from regrowing in the future.

When using any method, it’s essential to be mindful of the surrounding environment and take appropriate precautions to minimize any negative impact on desired vegetation and water sources. With proper care and consistent maintenance, you can keep your cracks weed-free and maintain the tidiness and appearance of your outdoor spaces.

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Frequently Asked Questions

Does salt kill weeds in cracks?

Yes, salt can effectively kill weeds in cracks. When salt leaches into the ground, it has the ability to sterilize the area, inhibiting any vegetative re-growth. By spreading a thin layer of rock salt between the cracks of your walkway or pavement, you can eliminate any weeds or grass that are growing there and prevent their return for an extended period of time. Additionally, applying rock salt to the cracks and crevices in your driveway can help maintain a weed-free surface.

Does vinegar kill weeds in cracks?

Indeed, vinegar can be an effective weed killer for controlling weeds in cracks. The acidic nature of vinegar works to dehydrate and kill unwanted plants, making it a natural and environmentally-friendly solution. However, it is important to exercise caution and avoid using vinegar in areas where it may come into contact with desirable plants, as the acidity can cause damage. Thus, while vinegar can be a useful tool for maintaining weed-free cracks, it should be used sparingly and with care to prevent any unintended harm.

Does vinegar kill weeds permanently?

Vinegar’s effectiveness in killing weeds is not permanent, as it selectively targets only broadleaf weeds. While it can impede above-ground growth, the root systems remain unaffected, allowing for the regrowth of perennials and grasses. It provides a temporary solution for controlling weeds rather than a permanent eradication method.

How do I get rid of weeds in my cracks in my patio?

An effective solution to eliminate weeds in the cracks of your patio is by using white vinegar. White vinegar contains acetic acid which acts as a natural weed killer. Simply pour or spray white vinegar directly onto the weeds, ensuring that it saturates the cracks completely. Allow the vinegar to sit for a few hours, then pull out the dead weeds. To prevent future weed growth, you can also sprinkle some baking soda into the cracks as it helps to deter weeds from taking root.

Another method to tackle weeds in patio cracks is by using boiling water. Boil a kettle or pot of water and carefully pour it directly onto the weeds, ensuring that you cover the cracks thoroughly. The hot water will kill the weeds by damaging their cellular structure. It is important to exercise caution when using boiling water to avoid burns or damage to nearby plants. For added prevention, consider using a weed barrier fabric or filling the cracks with polymeric sand, which helps to inhibit weed growth while maintaining the overall aesthetics of your patio.

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