10 Best Weed Killer For Dandelions In Lawn 2025 in the United States

Scotts Turf Builder Weed & Feed3 is a dual-purpose product that not only kills weeds like dandelions, clover, and over 50 other listed lawn weeds but also fertilizes your lawn to promote thick, healthy grass. This product is in granule form and contains active ingredients 2,4-D and Mecoprop, which are effective in weed control. It covers a substantial area of 5,000 sq. ft. per 14.29 lb. bag, making it suitable for medium to large lawns.

You should apply it to a wet lawn when weeds are actively growing and when the temperatures are between 60°F and 90°F for best results. The product can be used on various types of grass such as Bahiagrass, Bermudagrass, Bluegrass, Centipedegrass, Fescue, Ryegrass, and Zoysiagrass. However, it's worth noting that it is not available in Florida, which may limit its availability for some users.

If you're looking for an all-in-one solution to manage weeds and nourish your lawn, Scotts Turf Builder Weed & Feed3 is a solid option, but be mindful of proper application to maximize its benefits.

Scotts Turf Builder Weed & Feed5 is a granular product that combines weed control with lawn fertilization, making it a convenient choice for homeowners wanting to both kill weeds like dandelions and clover and strengthen their grass. It covers up to 4,000 square feet, which is suitable for medium-sized lawns. The product works best when applied to a wet lawn during mild weather (between 60°F and 90°F), helping it target actively growing weeds. It treats over 50 common lawn weeds, so it’s quite versatile. Scotts supports various grass types, including Bluegrass, Fescue, and Bermudagrass, which means it fits many typical lawn setups.

One of the benefits is that it not only kills weeds but also feeds the lawn to help thicken grass, which can reduce future weed growth. As a granular formula, it requires spreading evenly and watering in to activate, which might take some care to avoid patchy results. While it controls many weeds, it may not be as fast-acting or selective as liquid herbicides for tough dandelions.

Scotts Turf Builder Weed & Feed5 serves as a practical option for lawn owners seeking combined weed control and fertilization, especially if they want to maintain a healthy, thick lawn over time.

Ortho GroundClear Weed and Grass Killer Refill is a liquid spray designed to kill various stubborn weeds such as dandelions, chickweed, crabgrass, and moss in patios and landscape areas, but it is not meant for use on lawns or desirable grass. It works quickly, showing results within 15 minutes, and becomes rainproof after just 2 hours once dry. The refill bottle allows you to reuse the application wand from the original package for precise targeting, which helps avoid harming plants you want to keep.

This product is OMRI listed, meaning it's approved for organic use, which is a plus for those concerned about environmental impact. However, it’s important to apply it only when weeds are small, actively growing, and dry to ensure effectiveness. While it covers an average-sized area with one gallon, the product is heavier than some alternatives and is intended mainly for use on hard surfaces and landscaped beds rather than lawns themselves.

If you're looking to remove tough weeds from driveways, walkways, or garden beds—especially dandelions—this is a solid choice. Just avoid using it directly on your lawn grasses to prevent damage.