10 Best Post-Emergent Broadleaf Herbicides 2025 in the United States

Ortho WeedClear Weed Killer for Lawns Ready-To-Spray is a convenient solution for those looking to tackle common lawn weeds without damaging their grass. One of its standout features is its ability to kill over 250 types of broadleaf weeds, such as dandelions and clover, making it highly versatile. The product promises visible results within hours, and it becomes rainproof just one hour after application, adding to its practicality for unpredictable weather conditions.

Additionally, it covers a large area, up to 16,000 square feet, making it suitable for medium to large lawns. Using it is straightforward: simply attach the bottle to your garden hose, choose the setting, and spray. It’s also pet and people-friendly once dried, which is an important consideration for families and pet owners. However, despite its effectiveness, the product must be used precisely as directed to avoid harming the lawn, which might be a little daunting for first-time users.

The 32-ounce bottle might also be too small for very extensive areas, potentially requiring multiple purchases. Altogether, Ortho WeedClear offers an efficient and easy-to-use option for maintaining a weed-free lawn with minimal risk to the grass when applied correctly.

Southern Ag Amine 2,4-D Weed Killer is a post-emergent broadleaf herbicide designed to control a wide range of broadleaf weeds and woody plants. It features a low, economical use rate of 1 to 4 pints per acre, making it a cost-effective option for large areas such as turf, pastures, and rangelands. The product is selective, targeting only broadleaf weeds without harming grass, making it ideal for maintaining lawns and other grassy areas.

Its liquid formulation ensures easy mixing and application, and it is rainfast within a few hours, reducing the risk of wash-off during unexpected rain. With an active ingredient of Ag Amine, it is effective in managing unwanted plant growth without posing significant environmental hazards when used as directed. Safety precautions should be observed during handling and application to avoid any potential health risks.

The product covers up to 5000 square feet, which is suitable for both residential and commercial use. It's not discontinued and ranks well in sales, indicating its popularity and effectiveness. Users should be cautious about the specific weeds it targets and ensure it aligns with their needs.

The Syngenta Tenacity Herbicide is a versatile weed control product that targets a wide range of broadleaf weeds and grasses. With its active ingredient, Mesotrione, Tenacity offers both pre-emergent and post-emergent control, making it effective for preventing new weeds and tackling existing ones. This herbicide stands out due to its selective nature, meaning it targets weeds while sparing your lawn and desired turf grasses. This is particularly useful for maintaining the health of your lawn while ensuring unwanted plants are eliminated. Another significant advantage is its suitability for application during seeding, which is not common in many herbicides, thus offering flexibility in lawn care routines.

The liquid formulation is easy to measure and apply, with a built-in dispensing chamber that simplifies the process. Users appreciate the ease of use and the precise control this product provides. However, it's important to note that despite its strengths, Tenacity may not be rainfast immediately, requiring some time after application to be effective. Additionally, while it is generally considered safe for lawns, users should follow the instructions carefully to avoid any potential negative impacts on the environment or desired plants.

For those serious about lawn care and weed management, Syngenta Tenacity Herbicide offers a reliable and innovative solution, though attention to application details is necessary for best results.