Yellow clover (Trifolium dubium) is a common and attractive lawn weed that can quickly form dense patches, outcompeting turf for nutrients and water. While its yellow flowers may enhance visual appeal, it often indicates soil fertility issues and can weaken grass health. Choosing the best weed killer for yellow clover helps restore and maintain a lush, uniform lawn.

Yellow clover is a broadleaf weed sensitive to selective herbicides, making treatment effective when timed correctly. Both post‑emergent and pre‑emergent solutions can help prevent or kill clover patches. This guide highlights chemical and organic options to effectively control yellow clover without harming turf.

Below are the top 10 best weed killers for yellow clover, chosen for their safety on grass, effectiveness, ease of use, and cost‑effectiveness. From targeted spot treatments to lawn‑wide sprays, you’ll find a solution suited to your needs.

Top 10 Best Weed Killers for Yellow Clover

1. Ortho Weed B Gon Weed Killer for Lawns

Selective broadleaf herbicide containing 2,4‑D, dicamba, and MCPP, effective on yellow clover. Safe on most lawn grasses when used during active growth. Results typically visible within a few days.

Hose‑end sprayer makes application quick across large areas. Rainproof in 1 hour—ideal for lawns. Good value for inexpensive, routine control.

Best applied in spring or fall. Avoid mowing around application. Keep pets and kids off until grass dries.

2. Spectracide Weed Stop for Lawns

Includes 2,4‑D, dicamba, and MCPP to eliminate yellow clover and over 200 broadleaf weeds. Available in both spray and concentrate formats. Safe for established lawn grasses.

Rainproof within 6 hours with visible weed yellowing in days. Spot or broadcast treatment options available. Cost‑effective for regular maintenance.

Don’t mow two days before or after application. Use gloves and eye protection. Store in a secure, dry area.

3. BioAdvanced All‑in‑One Lawn Weed & Crabgrass Killer

Dual‑action formula targets clover and grassy weeds like crabgrass. Contains quinclorac, 2,4‑D, and dicamba. Works safely on warm‑ and cool‑season lawns when used correctly.

Best applied under 85 °F—rainproof in one hour. Hose‑end sprayer covers medium to large lawns. Visible results appear in days.

Great for mixed‑weed infestations. Avoid using on new lawns. Always follow label instructions.

4. Southern Ag Amine 2,4‑D Weed Killer

Concentrated 2,4‑D formula designed for broadleaf weeds, including yellow clover. Mix with water and apply via handheld sprayer. Budget‑friendly for large properties.

Rainproof in 6 hours, with visible weed decline in 7–10 days. Use during calm weather for best results. Mix thoroughly before spraying.

Wear gloves and eye protection. Keep off treated turf until dry. Reapply if clover returns.

5. Tenacity Herbicide

Contains mesotrione, working as both pre‑ and post‑emergent on yellow clover and other broadleaf weeds. Safe for many lawn types, though temporary whitening may occur. Ideal for weed‑prevention plans.

Requires non‑ionic surfactant for best performance, rainproof in an hour. Use during spring or fall. Apply with a tank sprayer.

Great for pre‑seeding and overseeding routines. Avoid high heat conditions. Safe for eco‑friendly lawn care routines.

6. Green Gobbler 20% Vinegar Weed & Grass Killer

Organic vinegar spray that burns yellow clover foliage on contact. Best for spot treatments on driveways or edges. Visible results within 24 hours under sunny conditions.

Not rainproof—avoid wet weather within hours after spraying. Safe for pets once dry. No mixing required.

Multiple applications may be needed. Gloves recommended. Avoid overspray onto grass.

7. RM43 Total Vegetation Control

Glyphosate + imazapyr combination is strong and non‑selective—ideal for eradicating clover in hardscape zones. Offers long‑term prevention of regrowth. Ideal for fence lines and pathways.

Apply directly to clover and let area remain dry. Avoid lawn zones—this is non‑selective. Rainproof once absorbed.

Wear full PPE when using. Not suitable for on‑lawn use. Store safely after use.

8. Natural Armor Weed & Grass Killer

Biodegradable vinegar and salt formula that kills yellow clover foliage on contact. Best used on hardscape surfaces or bare patches. Visible within hours.

Spot‑spray direct foliage in calm weather. Store out of direct sunlight. May require repeat applications.

Safe for pets and children post-drying. Gloves advised. Avoid spraying on desirable plants.

9. Preen Garden Weed Preventer

Pre‑emergent formula that blocks yellow clover seeds from germinating in garden beds. Lasts up to 3 months per application. Not suitable for existing clover patches.

Apply pre‑planting or pre‑germination, then water in. Reapply each season. Safe around ornamentals.

Prevents future outbreaks. Use with existing weed‑killer programs. Gloves recommended during application.

10. Ortho GroundClear Weed & Grass Killer

Concentrated glyphosate solution that kills clover down to the root system in non‑lawn areas. Works well on driveways, rock beds, and hardscape cracks. Visible results in 6–12 hours.

Dilute per label instructions and avoid grass zones. Not rainproof until absorbed. Keep area undisturbed until dry.

Wear protective gear during use. Non‑selective—only use off‑turf. Store in original sealed container.

Buyer’s Tips for Treating Yellow Clover

1. Identify Growth Zones: Use selective herbicides on lawns and non‑selective in hardscape areas.
2. Time Treatments Properly: Treat during active clover growth—typically spring and fall.
3. Check Turf Compatibility: Verify the product is safe for your specific grass type.
4. Measure Accurately: Dilute concentrates precisely to avoid turf damage or ineffective control.
5. Apply During Calm Weather: Avoid wind to prevent drift to non‑target plants.
6. Use Spot Treatment When Possible: Targeted application reduces chemical use and environmental impact.
7. Prepare for Repeat Applications: Clover may reappear—inspect and retreat if needed.

7 Frequently Asked Questions (FAQs)

1. Will vinegar kill yellow clover roots? No—it kills foliage only; roots remain viable.
2. Can I apply pre‑emergent only? Yes—but adding post‑emergent ensures current clover is controlled.
3. Is Tenacity safe on all grasses? Mostly, but some fine fescues or bentgrasses may be sensitive.
4. How long before I can mow? Wait at least 1–2 days post‑application for absorption.
5. Are organic options as effective? Only for small patches; selective chemicals are more reliable.
6. Should I water after application? Not unless instructed—pre‑emergents need light watering; others do not.
7. Can yellow clover return? Yes—persistent weeds may need multiple treatments and pre‑emergents.

Conclusion

Yellow clover control combines selective weed killers, timing, and proper application techniques for effective results. Use safe turf‑rated products like Weed B Gon and Spectracide to protect your grass while eliminating clover. In non‑lawn areas, stronger solutions like RM43 provide long‑term control. Adding pre‑emergent treatments and regular monitoring helps prevent recurrence. Implement these strategies to maintain a vibrant, clover‑free lawn.