Choosing a liquid weed control solution that safely protects your lawn while killing troublesome broadleaf weeds can be challenging. This guide highlights five highly recommended liquid weed killers that also feed your grass, helping you maintain a greener, healthier lawn. Each option targets common lawn weeds and is designed for easy, ready-to-spray application. Read on to compare formulations, active ingredients, and suitability for different grass types and seasons.
| Product | Brand | Format | Key Benefit |
|---|---|---|---|
| Scotts Liquid Turf Builder with Plus 2 Weed Control | Scotts | 32 fl oz | Kills broadleaf weeds; adds nitrogen for greening |
| Liquid Harvest Lawn Weed Killer (Gallon) | Liquid Harvest | 1 gallon | Three-way control; low odor |
| Liquid Harvest Lawn Weed Killer (32 oz) | Liquid Harvest | 32 oz | Three-way control; wide weed coverage |
| Southern Ag Amine 2,4-D Weed Killer | Southern Ag | 32 oz | Economical rate; broadleaf weed control |
| Scotts Liquid Turf Builder 2 Step Lawn-Care with Plus 2 Weed Control | Scotts | 32 oz | Kills weeds; provides lawn food |
Scotts Liquid Turf Builder with Plus 2 Weed Control

Scotts Liquid Turf Builder with Plus 2 Weed Control combines broadleaf weed killer with a nitrogen boost to promote greener, thicker turf. It targets a range of common weeds such as dandelions, clover, ground ivy, henbit, chickweed, and plantain, helping your lawn regain uniform color. This product is designed for actively growing weeds, making it a solid choice in spring and summer when temperatures rise. The fertilizer component feeds the lawn while the weed control layer handles visible invaders, contributing to a more resilient sward after application. Consider suitability for your specific grass type and follow label directions for best results.
Scotts Liquid Turf Builder 2 Step Lawn-Care with Plus 2 Weed Control

This Scotts product blends weed control with lawn feeding in a two-step approach—killing existing weeds while providing steady nourishment to support new growth. It lists several common broadleaf weeds and works well as part of a season-long lawn-care plan. The liquid format provides even coverage and quick uptake by actively growing weeds. For best results, apply during a period of active growth and follow the label for rate and timing suitable for your grass species and climate.
Liquid Harvest Lawn Weed Killer (Gallon)

Liquid Harvest Lawn Weed Killer is a concentrated three-way weed control designed to target dandelions, clover, and other common broadleaf weeds while protecting the grass. Its formulation emphasizes reduced odor during application, which can improve user comfort during treatment. The product contains a mix of active ingredients including 2,4-D, MCPA, and Dicamba to broaden weed coverage. It’s suitable for various cool-season and warm-season grasses, provided the label directions are followed for proper dilution and application timing.
Liquid Harvest Lawn Weed Killer (32 Ounces)

This 32-ounce Liquid Harvest bottle offers three-way weed control with active ingredients similar to the gallon size option. It targets many broadleaf weeds that commonly invade lawns, while aiming to spare grass from damage. The product emphasizes convenient mixing and application, making it suitable for homeowners seeking a straightforward weed control solution. As with all concentrated herbicides, ensure accurate dilution and apply under appropriate weather conditions to maximize effectiveness and minimize grass stress.
Southern Ag Amine 2,4-D Weed Killer

Southern Ag Amine 2,4-D Weed Killer provides an economical option for broadleaf weed control across turf, pastures, and rangeland. Its low rate per acre makes it a cost-effective choice for larger lawns and borders where weeds such as dandelions and clovers are prevalent. Always observe label-specific instructions for dilution rates and compatibility with various grass species. This product is well-suited for homeowners seeking a straightforward, budget-conscious weed control solution that can be applied across diverse outdoor spaces.
Bonide Liquid Weed & Feed 20-0-0

Bonide Liquid Weed & Feed combines weed control with a 20-0-0 fertilizer, delivering nitrogen-rich feeding alongside broadleaf weed suppression. It’s a ready-to-spray option suitable for outdoor lawns and related spaces. The fertilizer component supports rapid greening, while the weed control targets a wide range of common invaders. Check compatibility with your lawn type and ensure proper application practices to minimize stress to the turf while maximizing weed kill efficiency.
Buying Guide: Key Purchase Considerations
- Active ingredients and weed spectrum: Look for products with combinations like 2,4-D, MCPA, and Dicamba for broadleaf weed control. For post-emergent needs, select formulas designed to kill actively growing weeds without harming the lawn.
- Grass compatibility: Some products are safer for cool-season grasses, while others are suited for warm-season varieties. Always confirm compatibility on the label with your grass type (e.g., fescue, Kentucky bluegrass, St. Augustine).
- Fertilizer component: Weed killers that also fertilize can promote quicker greening and recovery after weed damage. Evaluate whether you want a simple weed control spray or a weed-and-feed formulation.
- Application timing: Apply during active weed growth and favorable weather. Avoid applying during extreme heat, drought, or cold snaps, and follow label directions for ideal intervals between treatments.
- Concentration and dilution: Concentrated formulas require proper mixing to achieve effective coverage. Use the recommended dilution rate to prevent lawn stress and ensure even distribution.
- Odor and user experience: Some formulations emphasize low-odor blends, enhancing comfort during application indoors or in areas with close neighbors.
- Safety and environmental impact: Consider products with minimized runoff potential, and follow all safety precautions to protect children, pets, and wildlife.
- Cost efficiency: Compare cost per square foot and per bottle, factoring in the lawn size and treatment schedule to choose the most economical option over time.
- Ease of use: Ready-to-spray products simplify application, while concentrates may require additional equipment for mixing and measuring.