Weeds sprouting between interlocking blocks can detract from the appearance of driveways, patios, and walkways.
Not only do they look unsightly, but they can also cause damage over time by growing into the spaces and displacing the blocks.
Fortunately, there are several effective methods to remove weeds in these areas, ensuring your interlocking blocks remain neat and well-maintained.
1. Manual Removal
Manual removal is the most common weed removal method and it is also effective for interlocking bricks.
For the best results, you’ll need a weed removal tool, a knife, or a screwdriver. Use the tool to carefully pull the weeds out from between the blocks. Dig out as much of the root system as possible to prevent the weeds from growing back.
This method is ideal for smaller areas or where weed growth is not too dense.
2. Vinegar Solution
A vinegar solution contains acetic acid that can be an effective organic herbicide. To make a powerful herbicide solution, mix white vinegar with water. For tough weeds, you can use undiluted vinegar.
Adding a teaspoon of dish soap can help the solution stick to the weeds, increasing its effectiveness. Spray the solution directly onto the weeds and ensure they are coated thoroughly.
It is a good non-selective herbicide for weed removal between interlocking bricks because there are no desirable plants that can be affected.
3. Pressure Washing
For larger weeds, hand-pulling combined with pressure washing can help dislodge any remaining weed fragments. Not only does it remove the small weeds, but it also washes away the soil that creates a favorable environment for weed growth.
4. Boiling Water
Using boiling water is a simple and eco-friendly way to kill weeds. All you need to do is boil a kettle of water and pour the boiling water directly onto the weeds.
The extreme heat will kill the weeds to the roots. You may have to repeat the procedure for stubborn weeds. Don’t worry, the interlocking bricks can withstand the water temperature without much deterioration.
However, be cautious to avoid burns and ensure that the water only contacts the unwanted plants between the bricks.
5. Salt
Salt is another natural and effective option to kill weeds between interlocking bricks if applied correctly. Mix a solution of salt and water, or apply salt directly to the weeds. The salt dehydrates the plants, eventually killing them.
However, there is always a risk that the runoff could be transported to nearby desirable plants. Therefore, apply it carefully between the cracks, especially on the edges of the pavers to prevent unwanted plant damage.
6. Flame Weeder
Also referred to as torch or propane weeders, flame weeders are a relatively new way to get rid of pesky weeds. The extreme heat burns the plant tissues, including the roots, and the weeds eventually die.
7. Polymeric Sand
If you are having recurring issues with weeds, consider refilling the joints between your bricks with polymeric sand. This type of sand hardens after it gets wet, creating a strong barrier that resists weeds and doesn’t wash away easily.
8. Chemical Herbicide
If other methods aren’t effective, you can use a chemical herbicide designed for use on patios and driveways. Make sure to choose a product that is safe for the material of your bricks and follow the application instructions carefully.
Also, ensure that you wear protective clothing and avoid spraying on windy days to prevent drift to other areas.
Lead Editor for Insight Weeds.