Maintaining a vigorous, healthy lawn requires keeping weeds under control, and spray weed killers designed for lawns are an effective solution. These products target common lawn invaders like crabgrass, dandelions, clover, and more, often killing down to the root to prevent regrowth. This article reviews some of the best spray weed killers for lawns, highlighting key features and suitability for different grass types to help you choose the right product for your lawn care needs.
| Product | Brand | Key Features | Size |
|---|---|---|---|
| Ortho WeedClear Lawn Weed Killer Ready-To-Spray | Ortho | Kills crabgrass, dandelion, clover; safe for multiple grasses | 32 oz. |
| Roundup for Lawns₁ Ready-to-Use with Extend Wand | Roundup | Kills 253 weed types; rainproof in 3 hours; 3-month control | 1.33 gal. |
| Ortho WeedClear Weed Killer for Lawns with Comfort Wand | Ortho | Kills over 250 weeds without lawn harm; spot treatment | 1 gal. |
| Spectracide Weed Stop For Lawns Plus Crabgrass Killer | Spectracide | Kills 470+ weed types; visible results in 5 hours | 1 gal. |
| Scotts Liquid Turf Builder with Plus 2 Weed Control | Scotts | Weed killer + fertilizer; controls broadleaf weeds | 32 fl. oz. |
Ortho WeedClear Lawn Weed Killer Ready-To-Spray, 32 oz.
Ortho WeedClear Lawn Weed Killer Ready-to-Spray is designed to efficiently kill multiple common weeds in lawns, including dandelion, chickweed, clover, crabgrass, and foxtail. Its formula works by targeting weeds down to the root to prevent regrowth, delivering results with just a single application. This product is safe for use on a variety of lawn grasses such as Bermudagrass, Buffalograss, Fescues, Kentucky Bluegrass, Ryegrass, and Zoysiagrass, making it versatile for many lawn types. It is applied easily as a broadcast treatment, ensuring wide coverage without harming lawn grass when used according to directions.
Roundup for Lawns₁ Ready-to-Use with Extend Wand, 1.33 gal.
The Roundup for Lawns₁ Ready-to-Use features a tough weed killer formula made especially for Northern grasses. It kills over 253 types of weeds, such as crabgrass, dandelion, clover, yellow nutsedge, poison ivy, oxalis, and purslane. The product starts working immediately and becomes rainproof within 3 hours, ensuring effective weed control even if the weather changes soon after application. With an extend wand included, it allows targeted and easy application to affected areas. Its preventive effect can last up to 3 months for sustained weed management.
Ortho WeedClear for Lawns with Comfort Wand, 1 gal.
This gallon-sized Ortho WeedClear Weed Killer delivers fast-acting control over more than 250 lawn weeds including dandelion, clover, and chickweed. It kills weeds at the root while leaving the lawn grasses unharmed, making it ideal for spot treatment. The included Comfort Wand allows easy application precisely where needed. Compatible with a broad range of grasses such as St. Augustinegrass (except Floratam), Bermudagrass, Centipedegrass, Zoysiagrass, Buffalograss, Bahiagrass, Kentucky Bluegrass, Ryegrass, Tall Fescue, and Fine Fescue, it offers homeowners flexibility in weed control without compromising lawn health.
Spectracide Weed Stop For Lawns Plus Crabgrass Killer, 1 Gallon
The Spectracide Weed Stop For Lawns Plus Crabgrass Killer kills more than 470 types of broadleaf and grassy weeds, including stubborn species like crabgrass, dandelion, chickweed, clover, and yellow nutsedge. It provides visible results in as little as 5 hours, making it a fast and effective option for quickly tackling weeds. When applied as directed, it kills weeds without harming lawn grasses, giving homeowners the confidence to maintain a healthy, weed-free lawn. The ready-to-use formula offers ease of application without mixing or measuring.
Scotts Liquid Turf Builder with Plus 2 Weed Control, 32 fl. oz.
The Scotts Liquid Turf Builder with Plus 2 Weed Control offers a dual-action solution by combining a liquid weed killer with fertilizer. It tackles listed weeds such as dandelion, clover, ground ivy, henbit, chickweed, and poison ivy while providing a nitrogen boost to enhance lawn growth. This ready-to-spray formulation is intended for application when weeds are actively growing to maximize effectiveness. Suitable for homeowners seeking both weed control and turf nourishment in a single product.
Buying Guide: Choosing the Best Spray Weed Killer for Lawns
Selecting the right spray weed killer depends on several important factors. Here are key considerations to help guide your decision:
Types of Weeds Controlled
Look for products that target the specific weeds present in your lawn. Some formulas cover broadleaf weeds like dandelions and clover, while others also include grassy weeds such as crabgrass and nutsedge. Comprehensive control ensures fewer weeds return after treatment.
Lawn Grass Compatibility
Ensure the weed killer is safe for your grass type. Many products specify compatibility with common lawn grasses like Kentucky Bluegrass, Bermudagrass, Fescues, and St. Augustinegrass. Using a product not suited for your lawn can cause damage or discoloration.
Application Method and Ease
Ready-to-use spray bottles with wands or comfort grips provide convenient and precise application. Some include extendable wands for targeting hard-to-reach areas. Confirm if broadcast treatment or spot application is recommended based on your lawn’s needs.
Speed and Longevity of Control
Consider how quickly the product produces visible results—ranging from a few hours to a few days. Also review the duration of weed control, which can vary from a few weeks up to several months, affecting maintenance frequency.
Rainfast and Weather Resistance
Products that become rainproof quickly after application reduce the risk of wash-off from unexpected rain, ensuring the treatment remains effective. Check the label for rainfast times to plan your application accordingly.
Additional Benefits
Some products provide supplemental benefits such as fertilizer to promote lawn growth while killing weeds, making them valuable for overall lawn health.
By evaluating these factors in relation to your lawn’s conditions and weed issues, you can select a spray weed killer that effectively controls weeds while protecting your grass.