Best Weed Killer For Brick Patio

Weeds growing between bricks on patios can quickly turn a beautiful outdoor space into a maintenance headache. These unwanted invaders not only spoil the look of a brick patio but also weaken the structure over time. Selecting the best weed killer for a brick patio is essential for effective, long-lasting control without damaging the bricks or surrounding landscape.

Brick patios present unique weed control challenges due to the cracks and joints where weeds commonly grow. The right weed killer must be strong enough to kill roots and prevent regrowth while being safe for hard surfaces. From chemical sprays to organic solutions, choosing the appropriate method is key to maintaining a clean, weed-free brick patio.

This article reviews the 10 best weed killers for brick patios, examining their ingredients, effectiveness, safety, and application techniques. Whether you’re looking for a fast-acting formula, an eco-friendly option, or a long-term solution, you’ll find the perfect product to restore and preserve the appearance of your brick patio.

Top 10 Best Weed Killers for Brick Patio

1. Roundup Ready-To-Use Weed & Grass Killer III

Roundup Ready-To-Use is one of the most trusted products for killing weeds on hard surfaces like brick patios. It works by absorbing into the leaves and traveling to the roots, ensuring complete kill. It’s fast-acting and visible results appear within hours.

This product is ideal for spot treatments on driveways, patios, and walkways. The built-in sprayer makes it easy to apply directly to weeds growing between bricks. Glyphosate-based, it is effective but non-selective.

Use caution around desirable plants and rinse thoroughly if it contacts surfaces unintentionally. Safety gear is recommended during application. Avoid runoff into lawn areas or flower beds.

2. Spectracide Weed & Grass Killer Concentrate

Spectracide Weed & Grass Killer provides a budget-friendly and fast-acting solution for brick patios. It contains diquat dibromide, a contact herbicide that quickly damages plant tissue. This ensures rapid burn-down of unwanted vegetation.

Ideal for small patios or walkways, this product works well in dry weather conditions. Multiple treatments may be required for deeply rooted weeds. Application is best done using a pump sprayer.

It’s rainfast within 15 minutes and suitable for use around patios and paths. Follow safety precautions on the label. Not for use on lawns or near edible plants.

3. Ortho GroundClear Vegetation Killer

Ortho GroundClear is formulated to kill and prevent weeds for up to one year. It contains glyphosate and imazapyr, making it a powerful solution for long-term weed control. Designed specifically for hard surfaces like patios, driveways, and sidewalks.

This product is effective against all types of weeds, including tough perennial species. It penetrates to the roots, preventing regrowth. Ideal for areas where total vegetation control is desired.

Use in dry conditions for best results. Application should be limited to cracks and gaps to avoid soil contamination. Always wear gloves and goggles when applying.

4. Green Gobbler Vinegar Weed Killer

Green Gobbler is an organic weed killer made from 20% acetic acid derived from corn. It is OMRI listed for organic use and provides quick, eco-friendly control of surface weeds. Safe to use around kids and pets.

This product is non-selective and acts as a contact herbicide. It works best on young, shallow-rooted weeds. Results are visible within hours of application.

Use in dry, sunny weather to enhance effectiveness. Best for small patios with light weed growth. Multiple treatments may be necessary for larger or established weeds.

5. RM43 Total Vegetation Control

RM43 combines glyphosate and imazapyr to provide total control for up to 12 months. It’s designed for non-crop areas like patios, driveways, and gravel paths. Effective for tough, deep-rooted weeds and grasses.

This product should be applied only in areas where no vegetation is desired. Use a sprayer for accurate and targeted application. Best results occur during dry, warm weather.

Not suitable for use near water or edible plants. Follow all label instructions carefully. Personal protective equipment is strongly recommended.

6. BioAdvanced Weed & Grass Killer

BioAdvanced is a systemic herbicide that works on contact and is rainproof in one hour. It contains glyphosate and targets the entire plant system, including roots. Safe to use on brick patios, walkways, and driveways.

Provides visible results in 24 hours and complete kill in 1–2 weeks. Works well on dandelions, crabgrass, and other common patio weeds. The ready-to-use formula eliminates mixing steps.

Apply in calm weather to avoid drift. Avoid treating areas where future planting is intended. Protective gear should be used for handling.

7. Just For Pets Weed Killer Spray

Just For Pets is a pet-safe, natural weed killer that contains vinegar, salt, and soap. It’s ideal for households with children or animals that frequent the patio. Best used for spot treatment of minor weed growth.

Effective for small-scale maintenance and easy to apply directly to weeds. Non-toxic and safe around pets and people. It works within hours but may require repeated applications for lasting results.

Eco-friendly and biodegradable, it won’t harm the surrounding environment. Shake well before use and apply in sunny weather. Best for residential patios and paths.

8. Doctor Kirchner Natural Weed Killer

Doctor Kirchner is a saltwater-based weed killer made with ocean water, vinegar, and soap. It offers a natural alternative for weed control on hard surfaces like brick patios. Visible results are often seen within 24 hours.

This non-selective herbicide is safe for pets, kids, and wildlife. Great for eco-conscious users wanting to avoid synthetic chemicals. Apply generously to fully saturate weed foliage.

Best results come from using during sunny, dry conditions. Store in a cool, dry place and shake before use. Repeated treatments may be required for stubborn weeds.

9. Natural Armor Weed & Grass Killer

Natural Armor is an all-natural formula with no glyphosate or harmful chemicals. It uses vinegar, essential oils, and plant-based surfactants for safe and effective weed control. Works quickly on patios and walkways.

This product is non-selective, killing any plant it touches. Use as a spot treatment on visible weeds between bricks. Ideal for homeowners looking for non-toxic solutions.

Safe around children and pets. Avoid contact with desirable plants. Store away from direct sunlight.

10. Preen Garden Weed Preventer

Preen is a pre-emergent herbicide that prevents weed seeds from germinating on brick patios. It is applied before weeds appear and stops them at the root. Best used after initial weeding or herbicide treatment.

Not effective on existing weeds but great for maintaining a clean patio. Works for up to 3 months with one application. Safe for use around many ornamental plants and landscape features.

Sprinkle evenly on dry surfaces and water in lightly. Reapply seasonally for continued protection. Wear gloves during application for safety.

7 Buyer’s Tips for Choosing the Best Weed Killer for Brick Patio

  • Choose a product suitable for hard surfaces.
  • Decide between organic and chemical options.
  • Check for fast-acting or long-term formulas.
  • Apply in dry weather for best results.
  • Consider pet and child safety if needed.
  • Use spot treatments to preserve surrounding areas.
  • Follow all label safety instructions strictly.

7 Frequently Asked Questions (FAQs)

  1. Can I use vinegar to kill weeds between bricks? Yes, vinegar-based herbicides like Green Gobbler are effective on young weeds.
  2. Will weed killer damage my bricks? Most are safe for bricks when applied directly to weeds, not the surface.
  3. What is the best long-term solution? Products like RM43 and Ortho GroundClear provide season-long control.
  4. How often should I apply weed killer? Every 3–12 months depending on the product and weed type.
  5. Are there pet-safe weed killers? Yes, options like Just For Pets and Doctor Kirchner are non-toxic and safe.
  6. Should I pull weeds before spraying? Not necessary; apply directly to green, active growth for systemic killers.
  7. Can I use pre-emergent herbicide? Yes, Preen helps prevent new weeds from growing on clean surfaces.

Conclusion

Maintaining a weed-free brick patio requires choosing the right herbicide based on safety, effectiveness, and your specific needs. From organic sprays to powerful long-term solutions, this guide helps you make informed decisions. With regular use and proper application, you can enjoy a clean and beautiful patio year-round. Whether you prioritize pet safety or fast results, there’s a weed killer that fits your lifestyle. Always follow product instructions and take safety precautions during application.

Agronomist

I'm a passionate Weed Control Specialist. Got a weed problem? Let’s fix it!

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