10 Best Weed Killer That Does Not Kill Grass 2026 in the United States

Roundup For Lawns₁ Ready-To-Use is a selective herbicide designed specifically for use on Northern grasses, effectively targeting a wide range of 253 weed types while sparing the grass itself. Its active ingredients include Mcpa, Dimethylamine Salt, Quinciorac, Dicamba Dimethylamine Salt, and Satentrazone, which collectively ensure robust weed control. The product offers up to three months of weed prevention, starting to work immediately, and is rainproof within three hours, providing a convenient solution for busy homeowners.

The extendable spray wand simplifies application, allowing for continuous and even coverage over an area of up to 5,000 square feet, making it suitable for medium to large lawns. However, it is important to note that this product is not available in several states, including FL, HI, LA, NY, TX, and certain U.S. territories, which could limit its accessibility for some users.

Additionally, while it is effective on listed Northern grasses like Kentucky Bluegrass and Perennial Ryegrass, it may not be suitable for other grass types or regions. For those within the product's usage area, Roundup For Lawns₁ offers a practical and effective solution for maintaining a weed-free lawn without harming the grass.

Roundup for Lawns Refill is designed as a selective weed killer that targets a wide range of common lawn weeds—over 250 types including crabgrass, dandelions, and clover—without damaging many popular northern grass varieties like Kentucky Bluegrass, Perennial Ryegrass, and several Fescue types. This makes it a solid choice for homeowners wanting to keep their grass healthy while removing tough weeds. The product is a ready-to-use liquid, which simplifies application and eliminates the need for mixing. It covers a large area of up to 10,000 square feet, which suits medium to large lawns.

One notable advantage is its quick action, becoming rainproof within three hours and providing weed control lasting up to three months, reducing the need for frequent treatments. However, it is important to apply it only on recommended grass types to avoid damage, limiting its use for lawns with different or mixed grass species. Also, while effective, it is a chemical herbicide, so users who prefer organic options might look elsewhere. This product works best for those with northern grass lawns who want an easy-to-use, long-lasting weed control solution but should follow instructions carefully to protect their grass.

Scotts Turf Builder Weed and Feed5 is a selective herbicide combined with lawn fertilizer designed for controlling common weeds like dandelions and clover without harming several popular grass types such as Bahiagrass, Bermudagrass, Bluegrass, and Fescue. It works best when applied to a wet lawn with temperatures between 60°F and 90°F, and can be used twice a year. This product controls over 50 listed weeds while feeding your lawn to help it grow thicker and naturally crowd out future weeds. The granules come in an 11.32-pound bag covering up to 4,000 square feet, with best results seen when using a Scotts spreader for an even distribution.

It should not be used on certain grasses like St. Augustinegrass or Bentgrass, so it's important to check your lawn type before applying. The product is a popular choice in weed control, but since it combines weed killer and fertilizer, its timing and application must be carefully followed to avoid potential lawn damage. This makes it a good fit for homeowners wanting a convenient, two-in-one lawn care solution for common grass varieties that need both weed control and feeding.