Best Weed Killer For Oxalis for Lawns and Spot Treatments

#1 · Best Overall

1. Ortho Oxalis Concentrate

• Form: Liquid
• Weight: 16 oz

Best for: Oxalis on listed lawn grasses.

Why it ranks #1: Its lawn formula specifically targets oxalis and covers up to 3,200 square feet; it is labeled for several common grasses when used as directed.

Coverage of up to 3,200 square feet from a 16-ounce concentrate makes Ortho a lawn-focused option for treating oxalis across a defined area. It targets chickweed, clover and oxalis, and its listed grass types help homeowners check whether it suits their turf before mixing and spraying.

This post-emergent broadleaf herbicide is mixed with water and applied using a tank sprayer, so treatment involves preparing a diluted spray rather than applying a ready-to-use bottle. The label lists Buffalograss, fescues, Kentucky bluegrass, ryegrass and zoysiagrass as suitable lawns. Its 3,200-square-foot coverage gives buyers an area estimate for planning a treatment, while the below-90°F application limit makes temperature part of scheduling. Follow label directions and avoid grasses specifically excluded.

Skip it if you have Bahiagrass, Bermudagrass, Centipedegrass, Kikuyugrass or St. Augustinegrass; this product is not for those lawns.

Choose this Ortho concentrate if oxalis is in a listed lawn grass and you can mix and apply it with a tank sprayer. Its grass exclusions and below-90°F application limit are important fit checks.

Listed on Amazon as: Ortho Chickweed, Clover & Oxalis Killer for Lawns Concentrate, 16 fl. oz.

#2 · Best Ready-to-Use

2. Bonide Oxalis Ready-to-Use

• Form: Spray
• Weight: 8 lb

Best for: Ready-to-use residential turf spray.

Why it ranks #2: The 128-ounce ready-to-use spray explicitly lists oxalis control on residential turf, avoiding the dilution required by concentrate products.

A 128-ounce ready-to-use spray lets Bonide address lawn weeds without requiring the buyer to dilute concentrate first. Its listed targets include oxalis, chickweed, clover, dandelions and ground ivy, while the product description says systemic action kills weeds down to the roots in residential turf.

Because it arrives ready to use, the workflow is to spray the product rather than measure and mix a concentrate. Bonide lists more than 100 tough-to-control weeds, with the full list on its label, so checking that label is useful when oxalis is not the only target. The product is for residential turf, and its rainproof claim applies hours after application; the supplied information does not specify an exact interval here.

Skip it if you need a stated coverage area before choosing; Ortho Chickweed, Clover & Oxalis Killer for Lawns lists coverage up to 3,200 square feet.

Bonide suits residential-turf owners who want a ready-to-use spray for oxalis alongside a broad list of weeds. Check the label for controlled weeds and application directions, especially when planning treatment over a measured area.

Listed on Amazon as: Bonide Chickweed, Clover & Oxalis Killer, 128 oz Ready-to-Use Spray

#3 · Broad Turfgrass Fit

3. Nufarm Change Up

• Form: Liquid
• Weight: 2.1 lb

Best for: Broad turfgrass compatibility.

Why it ranks #3: It explicitly includes oxalis among more than 200 broadleaf weeds and lists both cool- and warm-season grasses, including St. Augustinegrass.

A label spanning both cool- and warm-season turfgrasses makes Nufarm Change Up a flexible selective-herbicide option across varied lawn types. It specifically lists oxalis among more than 200 broadleaf weeds, joining a range of other targets such as chickweed, dandelion and thistles.

The product combines MCPA, fluroxypyr and dicamba, and the description says it starts working quickly. Its listed turf tolerance includes Kentucky bluegrass, ryegrass, fescue, Bermudagrass and St. Augustinegrass, among other cool- and warm-season types, helping buyers assess compatibility across different lawns. Residential and commercial lawns are named use sites. Check the full label for application directions and rates, since the supplied rate information is incomplete.

Skip it if you want a ready-to-use spray rather than a selective herbicide; Bonide Chickweed, Clover & Oxalis Killer is listed as ready to use.

Change Up fits buyers seeking oxalis control across a broad range of listed cool- and warm-season lawn grasses. Its wide turf tolerance is useful, but consult the complete label for rates and application details before treating.

Listed on Amazon as: Nufarm Change Up, Premium Selective Herbicide to Provide Powerful Weed Control, 32 oz

#4

4. PBI Gordon TZone

• Form: Liquid
• Weight: 2.4 lb

Best for: Cool-weather turf treatment.

Why it ranks #4: This broadleaf herbicide combines triclopyr, 2,4-D, dicamba and sulfentrazone, with a stated cool-weather control option as low as 50°F.

A stated cool-weather control option at temperatures as low as 50°F gives TZone SE a defined scheduling advantage for buyers treating turf before warmer conditions arrive. Its four listed active ingredients are triclopyr, 2,4-D, dicamba and sulfentrazone, for tough broadleaf weed control.

TZone SE is listed for residential, commercial and golf sites, which helps buyers assess whether its stated site range matches their turf-care setting. Its cool-weather option begins as low as 50°F, giving a temperature reference for planning applications when other conditions may constrain treatment. The product also lists yellow nutsedge suppression and fast visual response. Oxalis is not specifically named in the supplied facts, so verify target weeds on the label before use.

Skip it if you want oxalis explicitly listed; Nufarm Change Up names oxalis among its more than 200 broadleaf weed targets.

TZone SE may suit turf managers needing a listed cool-weather option across residential, commercial or golf sites. Its supplied facts do not confirm oxalis control, so verify the label’s weed list before choosing it for oxalis.

Listed on Amazon as: TZONE SE Broadleaf Herbicide for Tough Weeds – 1 Quart

#5 · Convenient Spot Spray

5. Ortho Weed B Gon

• Form: Spray
• Weight: 1.5 lb

Best for: Convenient spot treatment.

Why it ranks #5: Its 24-ounce ready-to-use trigger is suited to spot treatment, and the product claims control of more than 250 listed weeds to the root.

A ready-to-use trigger spray with a Comfort Wand supports targeted lawn-weed treatment without first mixing concentrate. Ortho Weed B Gon is described as killing more than 250 listed weeds to the root, with results in hours, while its stated targets include dandelions, clover and other broadleaf weeds.

The Comfort Wand is specified for easy spot treatment, so the format suits directing spray at individual weeds instead of preparing a tank mix. Ortho says the formula will not harm the lawn when used as directed and kills weeds to the root. Oxalis is not specifically named in the supplied target list, however; check the product label’s list of weeds before relying on it for that particular problem.

Skip it if you need oxalis named in the product facts; Ortho Chickweed, Clover & Oxalis Killer for Lawns lists oxalis directly.

Choose this Ortho spray for convenient spot treatment of listed lawn weeds when a ready-to-use wand matters. Since oxalis is not specifically identified in the supplied facts, verify the label before using it for oxalis.

Listed on Amazon as: Ortho Weed B Gon Weed Killer, 24oz, RTU Trigger

#6

6. Ortho WeedClear Comfort Wand

• Form: Spray
• Weight: 9.4 lb

Best for: Precise lawn spraying with Comfort Wand.

Why it ranks #6: The one-gallon spray uses a continuous Comfort Wand and targets more than 250 listed broadleaf weeds, but supplied details do not name oxalis.

Ortho WeedClear’s continuous-spray Comfort Wand provides spray control without pumping, helping buyers apply lawn treatment with precision. Its lawn-friendly formula is described as targeting more than 250 common broadleaf weeds, including chickweed, clover and dandelions, while avoiding grass damage when used as directed.

The one-gallon spray format and continuous-spray wand make application direct, with no pumping required, which can simplify treating lawn weeds. The product description says it kills more than 250 common broadleaf weeds, but the supplied examples do not specifically name oxalis, so check the label’s full list. Application timing also matters: do not apply when rain is expected within one hour, and let the spray dry before people or pets enter.

Skip it if you need oxalis explicitly named as a target; Ortho Chickweed, Clover & Oxalis Killer for Lawns lists it directly.

This Ortho WeedClear suits lawn owners who value controlled, pump-free application from a one-gallon spray. Check the label for oxalis specifically, and account for the one-hour rain restriction and drying time before people or pets return.

Listed on Amazon as: Ortho WeedClear Weed Killer for Lawns with Comfort Wand, 1 gal.

#7 · Largest Stated Coverage

7. Spectracide Weed Stop Concentrate

• Form: Liquid
• Weight: 9 lb

Best for: Large-area lawn concentrate.

Why it ranks #7: Its concentrate treats up to 32,000 square feet of Northern Grasses or 42,500 square feet of Southern Grasses, though oxalis is not named in supplied details.

Coverage of up to 32,000 square feet on Northern Grasses or 42,500 square feet on Southern Grasses makes Spectracide’s one-gallon concentrate suited to large lawn areas. It kills more than 200 listed weeds, including chickweed and clover, and is described as rainproof after six hours.

The concentrate must be mixed with water and applied using a tank sprayer, so buyers can plan the mix for a large treated area rather than spray directly from the bottle. Its separate coverage figures for Northern and Southern Grasses help estimate how much area one container can cover. Application is limited to daytime temperatures from 60°F to 85°F, and the product warns against use above 85°F due to possible grass damage.

Skip it if you want a product that explicitly names oxalis; Nufarm Change Up lists oxalis among its broadleaf weed targets.

Spectracide suits owners treating a large lawn who can mix concentrate and use a tank sprayer. Match its Northern or Southern Grasses coverage to your lawn, and observe the 60°F-to-85°F application range.

Listed on Amazon as: Spectracide Large Plot Weed Stop For Lawns Concentrate, 1 Gal

#8

8. Agrisel 3 Way Max

• Form: Liquid
• Weight: 8 lb

Best for: Measured concentrate for lawn areas.

Why it ranks #8: The 128-ounce liquid has stated mixing directions and an application rate, but the supplied information does not identify oxalis among its controlled weeds.

A listed mixing rate of 0.75 to 1.5 fluid ounces per gallon for 1,000 square feet gives Agrisel 3 Way Max a specific starting point for measuring treatment. Its title identifies a 128-ounce weed killer, and its instructions call for mixing the product before application.

The supplied directions recommend applying when weeds are actively growing, giving buyers a clear timing consideration. Measuring the area first helps calculate how much solution to mix for preventative or curative treatment, while the stated rate connects that calculation to 1,000 square feet. The safety information says pets should stay away from the sprayed area until dry. The supplied facts do not identify oxalis by name, so verify the label’s weed list.

Skip it if you need oxalis explicitly listed; Bonide Chickweed, Clover & Oxalis Killer names oxalis among its targets.

Agrisel may suit buyers comfortable measuring a treatment area and mixing solution to the stated rate. Keep pets away until the sprayed area dries, and confirm the label lists oxalis before relying on it for that weed.

Listed on Amazon as: Agrisel 3 Way Max Weed Killer, Eliminate 50+ Weeds, Pet Safe, 128 Ounces

#9

9. Southern Ag Amine 2,4-D

• Form: Liquid
• Weight: 16 oz

Best for: Broadleaf control across larger sites.

Why it ranks #9: This concentrate controls many broadleaf weeds and is used on certain grasses, but supplied details do not confirm oxalis control or provide a homeowner lawn rate.

A low listed use rate of 1 to 4 pints per acre makes Southern Ag Amine 2,4-D a concentrate for buyers treating broadleaf weeds across sizable areas. Its stated uses span turf, pastures, rangeland, ditch banks and fences, rather than only residential lawn treatment.

The liquid concentrate controls many broadleaf weeds and woody plants, and the listed use sites include certain grasses in lawns, parks, golf courses and pastures. That range can suit a buyer managing more than a home lawn, but the supplied product facts do not specifically name oxalis, so check the label before selecting it for that target. Coverage instructions caution against overlapping spray and warn to avoid drift onto susceptible plants.

Skip it if you need oxalis explicitly listed as a target; Ortho Chickweed, Clover & Oxalis Killer for Lawns names it directly.

Consider Southern Ag for broadleaf and woody-plant control across its listed turf, pasture and other sites. For an oxalis-specific lawn choice, its supplied facts leave the target unconfirmed, so consult the product label first.

Listed on Amazon as: Southern Ag Amine 2,4-D WEED KILLER, 32oz – Quart