To stop weeds growing between pavers, remove existing growth, check for missing joint sand, and refill gaps with suitable paver joint material. Polymeric sand can help limit weed growth when installed correctly, while sealing may provide extra protection if the pavers and joint material are suitable. No method prevents every weed, especially in Charleston's warm, humid, rainy climate.

Why do weeds grow between pavers?

Weeds often grow in organic debris and soil that collect in paver joints. Windblown seeds can settle into these gaps and sprout when moisture and sunlight are available.

Weeds may also become more noticeable when joint sand washes out or is displaced. Heavy rain, foot traffic and pressure washing can contribute to empty joints, leaving space for debris to collect.

How do you remove weeds safely?

Start by removing visible weeds and clearing leaves, dirt and other debris from the joints. Choose a method that will not damage the pavers or disturb the bedding beneath them.

Hand removal: Pull weeds out by the roots where possible. This gives you control but may not remove every root.

Joint scraping: Use a suitable hand tool carefully to clear growth and debris without chipping paver edges.

Boiling water: It can damage plants but may also harm nearby desirable plants and presents a burn risk. Use caution.

Weed treatments: Follow product directions and protect nearby plants, pets and drainage areas. Check local restrictions before use.

A quick pull can remove the visible growth, but it will not solve missing or deteriorated joint material. Check the joints after cleaning and repair them if needed.

Does polymeric sand stop weeds?

Polymeric sand is a jointing material containing fine sand and binding additives. When installed and activated according to the product instructions, it firms up between pavers and helps resist erosion and the entry of debris.

It can reduce conditions that allow weeds to establish, but it is not a permanent weed-proof barrier. Seeds can still sprout in debris on top of the joints, and poor installation can cause problems.

Advantages: Helps stabilize joints and reduce sand loss when properly installed.

Limitations: Existing joint material may need removal, and the pavers must be suitable for the product.

Installation matters: Surface residue, incorrect watering or unsuitable conditions can leave haze or prevent the sand from setting properly.

Will sealing pavers prevent weeds?

Sealing can help protect suitable pavers from some staining and may make routine cleaning easier, depending on the product. It does not replace sound joint material or stop every seed from germinating.

Not every paver or joint system should be sealed with the same product. Check compatibility and preparation requirements before applying a sealer. Sealing is a separate maintenance service, not something automatically included with a paver installation.

What methods do not work long term?

Repeatedly pulling weeds without repairing empty joints often means the same areas need attention again. Spraying chemicals may kill visible growth, but it does not refill gaps or stop windblown seeds from arriving.

High-pressure washing can remove weeds and dirt, but it can also wash joint sand out and create more space for growth. If you pressure wash, use a suitable method and check whether the joints need refilling afterward.

How can Charleston homeowners reduce weed growth?

In Folly Beach and the greater Charleston area, frequent rain, heat and humidity can encourage plant growth. Keeping joints clear and maintaining the correct joint material helps reduce the conditions weeds need.

• Remove leaves and organic debris regularly.

• Inspect joints after heavy rain or cleaning.

• Replace missing joint material with a compatible product.

• Use cleaning and sealing products suited to your pavers.

Frequently asked questions

•Can weeds damage pavers?

Small weeds often start in debris-filled joints, but persistent growth and displaced joint material can contribute to maintenance problems. Address gaps before they spread.

•How often should paver joints be checked?

Inspect them during routine cleaning and after heavy rain or pressure washing. Refill joints when material is missing, following the product instructions.

•Can I add polymeric sand over old sand?

Sometimes, but the existing joints must meet the product's depth and preparation requirements. Follow the manufacturer's instructions rather than simply covering the surface.

•Does every paver patio need sealer?

No. The right choice depends on the paver material, desired finish, exposure and maintenance needs.

•Get help maintaining your pavers

We provide paid paver maintenance services, including soft washing, re-sanding and sealing, for homeowners in Charleston and the surrounding Lowcountry. Contact us for a free design-and-build estimate, including an on-site visit and three price points for the same project scope. A custom 3D design is provided once your project is booked.