10 Best Broadleaf Herbicides 2026 in the United States

Ortho GroundClear Year Long Vegetation Killer2 Concentrate is a strong weed and grass killer designed for areas where you want no plant growth for up to a year. It comes as a liquid concentrate that you mix with water and apply using a tank sprayer. One 2-gallon container can cover up to 3,200 square feet, making it suitable for driveways, sidewalks, gravel, and other hard surfaces. This product works quickly and becomes rainproof within just one hour, so you don’t have to worry about losing effectiveness if it rains shortly after application.

Its formula kills existing weeds and grasses thoroughly and prevents new growth for up to 12 months, which means less frequent treatments are needed. However, it is a non-selective herbicide, meaning it will kill most plants it touches, so it’s important to apply carefully only where you don’t want any vegetation. Because of its strong and lasting action, this product is best for controlling weeds in non-lawn areas rather than gardens or lawns where you want plants to grow.

Users should handle it with caution and follow safety instructions to minimize environmental impact and avoid harming desirable plants. This weed killer is a convenient choice for long-term weed control on hard surfaces but requires careful use due to its broad-kill nature.

The Roundup Weed and Grass Killer with Pump 'N Go 2 Sprayer is designed to tackle tough broadleaf weeds and grasses like dandelion, crabgrass, poison ivy, and clover. It contains active ingredients including Triclopyr and Diquat Dibromide, which work together to kill weeds down to the root. This product is selective, meaning it targets unwanted plants without harming certain desirable plants if used carefully. One of its handy features is rainfastness — it becomes rainproof in just 30 minutes, so you don’t have to worry about rain washing it away right after application.

The included Pump ’N Go 2 Sprayer with an extendable wand makes it easier to spray without bending over and allows up to 10 minutes of continuous spraying, helping with precise application especially around flower beds, trees, patios, and walkways. A benefit is that you can plant new plants between 1 to 30 days after using it, depending on the area treated. Coverage is about 300 square feet per bottle, which is typical for this size.

While it’s effective on a broad range of weeds, it’s important to follow instructions carefully to avoid potential harm to nearby plants since it is only selective to a degree. Also, herbicides like this contain chemicals that should be used responsibly to minimize environmental impact, such as avoiding drift onto water sources or desirable plants. This Roundup product is suitable for homeowners looking for a convenient, effective solution for common yard weeds who want an easy-to-use sprayer and quick rain protection.

Roundup Weed & Grass Killer₄ Refill is a liquid herbicide designed to target tough broadleaf weeds and grasses such as dandelions, poison ivy, crabgrass, and clover. It contains active ingredients like Triclopyr and Diquat Dibromide, which work to kill weeds down to the root, making it effective for lasting control. This product is selective enough to be used safely around flower beds, trees, shrubs, patios, walkways, and driveways, giving it versatility for various home and garden areas.

One of its strengths is rainfastness—once applied, it becomes rainproof in about 30 minutes, which helps prevent the weed killer from washing away and losing effectiveness. Visible results usually appear within hours, allowing you to see progress quickly. It also offers some residual control, meaning you can plant new flowers or plants between 1 and 30 days after application, depending on the specific plants, making it flexible for landscaping needs.

The refill format is convenient and cost-effective for those who already own the spray applicator, reducing waste and providing enough solution to cover around 375 square feet. However, since it is a powerful herbicide, care should be taken to apply it carefully to avoid harming desirable plants. The product does include chemicals that can be harmful if misused, so following safety instructions is important. Environmental impact is a consideration; while effective, the active ingredients can affect nearby plants and soil organisms if over-applied or used improperly. This product is a strong option for targeted weed control with quick action and flexible use areas for users comfortable following label directions to minimize risks.