Best Selective Herbicide For Oxalis for Lawn Use

#1 · Best Overall

1. Ortho Oxalis Killer Concentrate

• Weight: 16 oz
• Form: Liquid

Best for: For listed lawn grasses.

Why it ranks #1: Names oxalis directly, treats up to 3,200 square feet, and lists compatible lawn grasses; its label also excludes several turf types.

Coverage of up to 3,200 square feet from a 16-fluid-ounce concentrate gives homeowners a way to target oxalis and other listed broadleaf weeds across a lawn. Ortho specifies use on five turfgrass groups, so the grass type is a key part of deciding whether this treatment fits.

This post-emergent concentrate is applied after dilution with a tank sprayer, letting you mix a treatment for the area you need to cover rather than use a ready-to-spray format. The stated coverage—up to 3,200 square feet—helps with planning applications across a larger compatible lawn. Its listed turf options are Buffalograss, fescues, Kentucky bluegrass, ryegrass, and zoysiagrass. Apply below 90°F, follow the label, and do not use it on the excluded grass types.

Skip it if you have Bahiagrass, Bermudagrass, Centipedegrass, Kikuyugrass, or St. Augustinegrass; Nufarm Change Up lists those turf types.

Choose this Ortho concentrate for oxalis and other broadleaf weeds across a lawn of a listed compatible grass, especially when tank-sprayer application suits your routine. Its use is not a fit for the excluded turf types, and applications must stay below 90°F.

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

#2 · Broadest Turf Range

2. Nufarm Change Up

• Weight: 2.1 lb
• Form: Liquid

Best for: Broad turfgrass compatibility.

Why it ranks #2: Explicitly controls oxalis among more than 200 broadleaf weeds and lists a wide range of cool- and warm-season turfgrasses.

A label spanning cool- and warm-season turf, including Bermudagrass and St. Augustinegrass, makes Nufarm Change Up a selective-herbicide option for varied lawn types. Its listed targets include oxalis among more than 200 broadleaf weeds, giving buyers a wide weed-control scope to consider.

Change Up combines MCPA, fluroxypyr, and dicamba, and the listing says it controls more than 200 broadleaf weeds, including oxalis. That breadth can suit lawns where several weed types need attention rather than a single target. Its listed turf tolerance includes grasses such as Kentucky bluegrass, ryegrass, Bermudagrass, and St. Augustinegrass, among others. The product is a 32-ounce liquid; the supplied details include a use-rate fragment but do not state container coverage.

Skip it if you need a stated area-per-container figure to plan application; Ortho Chickweed, Clover & Oxalis Killer lists coverage up to 3,200 square feet.

Consider Change Up when oxalis control must fit a turf type such as Bermudagrass or St. Augustinegrass and you value a broad listed weed spectrum. The supplied details do not give a complete application rate or coverage figure for planning.

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

#3 · Concentrate Pick

3. Bonide Oxalis Killer Concentrate

• Weight: 16 oz
• Form: Spray

Best for: Concentrate for lawn weeds.

Why it ranks #3: Specifically names oxalis and controls more than 100 tough weeds; the 16-ounce concentrate is mixed before spraying.

Bonide’s 16-ounce concentrate targets oxalis and more than 100 tough-to-control weeds, while its root-killing formula is described as sparing lawn grasses when used as directed. It suits buyers who want a mixable lawn treatment rather than a ready-to-use spray.

This concentrate is sprayed after mixing, so it gives you a treatment format that can be prepared for the weeds in your lawn instead of applying an undiluted ready-to-use product. Bonide lists oxalis, chickweed, clover, dandelions, and ground ivy among more than 100 targets, and describes the formula as killing weeds roots and all. Application timing also affects lawn care: the directions say not to mow for one to two days before or after treatment.

Skip it if you want to avoid measuring and mixing concentrate; Bonide Chickweed, Clover & Oxalis Killer Ready-to-Use Spray requires no dilution.

Pick this Bonide concentrate if you want a mixable treatment for oxalis and other listed lawn weeds and can schedule around the mowing directions. Its application requires dilution, and the lawn should not be mowed for the stated interval.

Listed on Amazon as: Bonide Chickweed, Clover and Oxalis Killer, 16 oz Concentrate

#4 · Ready-to-Use Pick

4. Bonide Oxalis Killer Spray

• Weight: 8 lb
• Form: Spray

Best for: Ready-to-use residential turf.

Why it ranks #4: Names oxalis and arrives as a 128-ounce ready-to-use spray, avoiding the concentrate dilution step for residential turf.

The 128-ounce ready-to-use spray removes mixing from the application workflow, while its listed targets include oxalis and more than 100 other tough weeds. Bonide describes systemic action down to the roots, making this a lawn treatment for buyers who prefer a premixed format.

Because this is a ready-to-use spray, you can apply it directly rather than dilute a concentrate, a useful distinction when avoiding a mixing step matters. Bonide lists oxalis, chickweed, clover, dandelions, and ground ivy among its targets, with more than 100 tough-to-control weeds covered. Its systemic action is described as killing weeds to the roots while leaving lawn grasses unharmed when used as directed. The product is for residential turf, and the 128-ounce size suits larger application needs.

Skip it if you want a smaller concentrate to dilute for targeted treatment; Bonide Chickweed, Clover and Oxalis Killer Concentrate comes in a 16-ounce size.

This Bonide spray suits residential-turf owners who want a ready-to-use treatment for oxalis and a broad range of listed weeds. Its 128-ounce volume is worth considering before choosing it, particularly if storage or smaller-scale application is your priority.

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

#5 · Largest Concentrate

5. Monterey Weed Whacker

• Weight: 8.8 lb
• Form: Spray

Best for: Large-area oxalis concentrate.

Why it ranks #5: Lists oxalis among more than 140 weeds and offers a one-gallon concentrate for warm- and cool-season residential turf.

A one-gallon concentrate listing oxalis among more than 140 weed targets gives Monterey Weed Whacker a broad scope for spray-tank lawn treatment. Its directions call for dilution with water, making it a fit for buyers comfortable mixing a concentrate for residential turf.

Weed Whacker is labeled for residential turf in warm- and cool-season grasses, and its listed weeds include oxalis, dandelions, clover, and thistle among more than 140 targets. The gallon concentrate is diluted with water and applied using a spray tank, a workflow suited to covering lawn areas with a sprayer. The listing says it can be used year-round and works best when weeds are young and actively growing. Follow the label directions when preparing and applying the mixture.

Skip it if you prefer a ready-to-use spray with no mixing; Bonide Chickweed, Clover & Oxalis Killer Ready-to-Use Spray comes premixed.

This Monterey concentrate fits residential-turf owners treating oxalis alongside a broad range of listed weeds, especially those using a spray tank. It requires dilution, and the listing notes best results when weeds are young and actively growing.

Listed on Amazon as: Monterey – Weed Whacker Weed Killer – Selective Broadleaf Weed Killer for Lawns – Kills 140+ Weed Types – Apply Using Sprayer – 1 Gallon Concentrate

#6

6. Bonide Chickweed Clover Killer

• Weight: 0.27 g
• Form: Spray

Best for: Bonide concentrate listing.

Why it ranks #6: Its listing identifies it as a Bonide chickweed, clover, and oxalis killer, but provides little detail about turf compatibility or coverage.

Bonide’s listing identifies this item as a chickweed and clover killer concentrate, giving it a lawn-weed-control category but limited detail for an oxalis-focused decision. Its supplied information also describes systemic action to the root, a useful treatment characteristic to note.

The supplied title and product details identify a Bonide chickweed/clover killer concentrate and describe systemic action that kills to the root. That points to a treatment intended to address weeds below the visible growth, rather than a stated contact-only action. However, the listing does not provide a full weed list, turf compatibility, coverage, or mixing directions. Because oxalis is not explicitly named in the supplied details for this item, buyers should verify the complete label before relying on it for oxalis.

Skip it if you want oxalis explicitly named among controlled weeds; Bonide Chickweed, Clover and Oxalis Killer Concentrate lists oxalis directly.

This Bonide item may suit buyers investigating a concentrate for chickweed or clover, but its supplied details are sparse for lawn planning. For oxalis treatment, confirm the target weed, turf compatibility, and application directions on the complete label.

Listed on Amazon as: Bonide Chickweed/Clover Klr Pt

#7

7. Nufarm Triplet SF

• Weight: 2 lb
• Form: Liquid

Best for: Flexible-rate turf treatment.

Why it ranks #7: A selective post-emergent broadleaf herbicide for cool- or warm-season turf, though the supplied details do not name oxalis.

Flexible application rates let Nufarm Triplet SF accommodate higher-rate problem areas or lower-rate turf maintenance, giving lawn and sod-farm operators options within one product. The listing describes post-emergent broadleaf weed control for both cool- and warm-season turf.

Triplet SF combines three selective herbicides and is labeled for cool- or warm-season turf, so its stated turf fit spans more than one seasonal category. Its flexible rates distinguish treatment of problem areas from routine turf maintenance, which can help tailor application to the job. The 32-ounce liquid is a post-emergent product, meaning it is aimed at weeds already present. The supplied details describe broadleaf control but do not name oxalis among the controlled weeds.

Skip it if you require a listing that names oxalis as a target; Ortho Chickweed, Clover & Oxalis Killer explicitly lists it.

Triplet SF fits turf managers seeking adjustable application rates for broadleaf weeds in cool- or warm-season turf, including sod-farm use. For an oxalis-specific purchase, the supplied product details leave its control unconfirmed, so check that point before choosing it.

Listed on Amazon as: Nufarm Triplet SF Selective Herbicide, Post-Emergent Broadleaf Herbicide, 32 oz

#8

8. SpeedZone EW

• Weight: 8 oz
• Form: Liquid

Best for: Fast visible turf response.

Why it ranks #8: Controls more than 90 listed weeds and names several compatible grasses, but the supplied weed list does not identify oxalis.

Visible effects within hours and rainfastness in as little as three hours give SpeedZone EW two timing details for buyers planning lawn treatment. It lists more than 90 weeds and a range of cool- and warm-season turf, but oxalis is not named in the supplied weed examples.

SpeedZone EW is a post-emergent herbicide with four active ingredients and listed control of more than 90 broadleaf weeds. The listing pairs fast visible effects with cool-weather performance, which can help when treatment timing matters. It also states that reseeding can occur in as little as seven days and that the product is rainfast in as little as three hours. Compatible grasses listed include Kentucky bluegrass, perennial ryegrass, tall fescue, Bermudagrass, and zoysiagrass, among others.

Skip it if you need a product listing that names oxalis; Monterey Weed Whacker explicitly includes oxalis among its controlled weeds.

SpeedZone EW suits buyers weighing quick visible response, rainfast timing, and a stated reseeding interval for listed turf. If oxalis is the primary target, its supplied details do not specifically confirm control, so check the complete label first.

Listed on Amazon as: SpeedZone EW Lawn Weed Killer

#9

9. T-Zone SE

• Weight: 2.4 lb
• Form: Liquid

Best for: Cool-weather turf applications.

Why it ranks #9: Lists four active ingredients and use across residential, commercial, and golf sites, but gives no specific oxalis-control claim.

A stated cool-weather application option down to 50°F gives TZONE SE a useful seasonal range for residential, commercial, and golf sites. Its four active ingredients and yellow nutsedge suppression add further scope, though the supplied details do not specifically name oxalis control.

The listed active ingredients—triclopyr, 2,4-D, dicamba, and sulfentrazone—make this a four-ingredient broadleaf herbicide for tough weeds. Its stated use across residential, commercial, and golf sites can suit different turf-management settings. The product also lists yellow nutsedge suppression, extending its stated role beyond broadleaf weeds, and identifies cool-weather use as low as 50°F. Since oxalis is not specifically named in the supplied details, buyers seeking confirmed oxalis control should verify that target on the product label.

Skip it if you need oxalis explicitly named in the supplied weed list; Monterey Weed Whacker lists oxalis among its targets.

Choose TZONE SE when cool-weather use, multiple turf-management settings, or yellow nutsedge suppression matters. For an oxalis-focused purchase, its supplied listing does not confirm that weed as a target, so verify the label before application.

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

#10

10. Nufarm Quincept

• Weight: 2 lb
• Form: Liquid

Best for: Post-emergent weed cleanup.

Why it ranks #10: A selective post-emergent herbicide for weed escapes, but its supplied description does not list oxalis or identify compatible turfgrasses.

Nufarm Quincept is positioned for weed escapes or cleanup where spring preemergent treatment was missed, giving it a defined role in a lawn-care sequence. Its 2,4-D, quinclorac, and dicamba combination is described as a selective post-emergent herbicide.

The three named ingredients—2,4-D, quinclorac, and dicamba—form a selective, post-emergent herbicide intended for weeds already present. The listing specifically frames Quincept as a cleanup option for areas that did not receive a spring preemergent application or for weed escapes. That use case can help buyers distinguish it from a preventative treatment. The product is a quart of liquid, but the supplied details do not identify oxalis among its controlled weeds or provide lawn coverage.

Skip it if you need a product listing that explicitly targets oxalis; Ortho Chickweed, Clover & Oxalis Killer names it directly.

Quincept fits buyers addressing post-emergent weed escapes or missed spring preemergent areas. Its supplied details do not confirm oxalis control or identify compatible turf types, so verify both on the product label before selecting it for that job.

Listed on Amazon as: nufarm Quincept Selective Herbicide (Qt)