How to Prevent Weeds and Moss Between Your Pavers

Maintaining a pristine and clean outdoor space is essential for every homeowner.

One of the most common challenges faced by those who have paver patios, driveways, or walkways is the persistent growth of weeds and moss between the pavers. These unwelcome guests not only mar the beauty of your paving but also can cause long-term damage if not addressed promptly. 

This blog will provide you with comprehensive strategies to prevent weeds and moss from taking root between your pavers, ensuring that your outdoor spaces remain beautiful and durable.

Understanding the Problem:

Why Weeds and Moss Grow Between Pavers

Weeds and moss thrive in the small gaps between pavers where dirt, moisture, and sunlight create an ideal environment for growth. Over time, wind and rain can deposit soil and organic matter into these gaps, providing a perfect breeding ground for these unwanted plants.

Preventative Measures

  1. Proper Installation

The best way to prevent weeds and moss from growing between pavers is to start with a proper installation. Ensure that your pavers are installed tightly with minimal gaps. A professional installation typically involves laying a base layer of gravel and sand, which helps with drainage and prevents weed seeds from settling in.

  1. Use of Polymeric Sand

Polymeric sand is an excellent material for filling the joints between pavers. This type of sand contains a special additive that binds the grains together when it gets wet. This creates a hard, impenetrable surface that discourages weed growth and inhibits moss formation.

To apply polymeric sand:

  • Sweep the sand into the joints between pavers.
  • Use a plate compactor to ensure the sand settles deeply into the gaps.
  • Lightly spray the surface with water to activate the binding agents in the polymeric sand.
  1. Seal Your Pavers

Sealing your pavers can provide an additional layer of protection against weeds and moss. A high-quality sealer acts as a barrier, preventing dirt and organic matter from settling into the joints. Moreover, it enhances the color of your pavers and adds a glossy finish, making your outdoor space look well-maintained.

  1. Regular Cleaning and Maintenance

Routine maintenance is crucial in preventing weed and moss growth. Regularly sweep your pavers to remove debris and organic matter. Power washing once or twice a year can also help clean out the joints and prevent soil build-up.

Weed and Moss Control Strategies

  1. Manual Removal

If you notice weeds or moss beginning to grow, it’s important to remove them as soon as possible. Manual removal can be done using a garden trowel or a weeding tool. Make sure to pull out the entire root to prevent regrowth.

  1. Use of Herbicides

Selective herbicides can be effective in killing weeds without harming the pavers. However, it’s important to choose a herbicide that is safe for use around your plants and grass. Always follow the manufacturer’s instructions for application to avoid damaging your garden.

For moss, a moss killer containing iron sulfate can be effective. Apply the product according to the instructions, and the moss should die and turn brown. Once dead, it can be easily removed with a broom or a pressure washer.

  1. Preventative Treatments

Applying a pre-emergent herbicide can help prevent weed seeds from germinating. This treatment is particularly useful in early spring before the growing season begins.

Another preventative measure is to mix white vinegar with water in a spray bottle and apply it to the joints between pavers. The acidity of vinegar can kill young weed sprouts and moss without harming your pavers.

  1. Ensure Proper Drainage

Poor drainage can lead to excess moisture, which promotes the growth of moss. Ensure that your pavers are laid at a slight angle to facilitate water runoff. Additionally, check that your gutters and downspouts are not directing water onto your paver surfaces.

Long-Term Maintenance Tips

  1. Monitor and Inspect Regularly

Regularly inspect your pavers for signs of weed and moss growth. Early detection and intervention are key to preventing these problems from spreading.

  1. Reapply Polymeric Sand

Over time, the polymeric sand between your pavers may erode due to weather and foot traffic. Reapplying polymeric sand every few years can help maintain the integrity of your paver joints and prevent weeds and moss.

  1. Reseal Your Pavers

Depending on the type of sealer used, you may need to reseal your pavers every 2-5 years. This helps maintain the protective barrier and keeps your pavers looking fresh.

  1. Seasonal Maintenance

Different seasons pose different challenges for paver maintenance. In the fall, clear away fallen leaves promptly to prevent organic matter from decomposing between the pavers. In the winter, use a plastic shovel to remove snow and avoid de-icing salts that can damage pavers and encourage weed growth.

  1. Professional Maintenance Services

For comprehensive care, consider hiring professional maintenance services. Companies like NY Pavers offer specialized services to keep your pavers in top condition, including cleaning, sealing, and weed and moss control.

Final Thoughts

Preventing weeds and moss between your pavers requires a combination of proper installation, regular maintenance, and timely intervention. By following these guidelines, you can ensure that your pavers remain attractive and functional for years to come. NY Pavers is committed to providing top-notch services to help you maintain your outdoor spaces, ensuring they are always in pristine condition.


Q: How often should I reseal my pavers?

A: It is recommended to reseal your pavers every 2-5 years, depending on the type of sealer used and the level of wear and tear.

Q: Can I use regular sand instead of polymeric sand?

A: While regular sand can be used, polymeric sand is more effective in preventing weed growth due to its binding properties.

Q: Is manual weed removal effective?

A: Yes, manual removal is effective, especially if you ensure the entire root is removed to prevent regrowth.

Q: Are herbicides safe for my garden?

A: Selective herbicides can be safe if used according to the manufacturer’s instructions. Always choose products designed for use around plants and grass.

Q: Can poor drainage cause moss growth?

A: Yes, poor drainage leads to excess moisture, which promotes moss growth. Ensuring proper drainage is crucial in preventing moss.