Oxalis, also known as yellow wood sorrel, can be stubborn in home lawns. The best approach combines products that target oxalis at the root while protecting your turf. Below is a curated selection of widely available weed killers designed to control oxalis and similar lawn weeds, along with practical guidance on use and safety. This guide focuses on products that work well when oxalis is actively growing and temperatures stay below 90°F, and emphasizes formulations that minimize damage to popular grasses.
| Product | Brand | Type | Weeds Targeted | Notes |
|---|---|---|---|---|
| Ortho Weed B Gon Chickweed, Clover & Oxalis Killer for Lawns Concentrate | Ortho | Concentrate | Oxalis, Chickweed, Clover, Ground Ivy, Speedwell, Wild Violet | Kills listed weeds; rainproof in 6 hours |
| Bonide Chickweed, Clover & Oxalis Killer Ready-to-Use | Bonide | Ready-to-Use Spray | Oxalis, Chickweed, Clover, Dandelions, Ground Ivy, Wild Violet, and 100+ | Ready-to-use; sprays on grass |
| Bonide Chickweed, Clover & Oxalis Killer Concentrate | Bonide | Concentrate | Oxalis, Chickweed, Dandelions, Ground Ivy, Wild Violet, and 100+ weeds | Mix before use |
| Ortho Weed B Gon Chickweed, Clover & Oxalis Killer for Lawns (32 Oz, Pack of 2) | Ortho | Concentrate | Chickweed, Clover, Oxalis | Kills to the roots; lawn friendly |
| BioAdvanced All-In-One Lawn Weed and Crabgrass Killer I (40 oz) | BioAdvanced | Concentrate | Over 200 broadleaf weeds including clover and dandelion | Kills weeds down to the root; safe for lawns |
Note: Always follow product labels for specific weed lists, mixing instructions, and safety precautions. The products above are commonly used to manage oxalis in lawns and can be effective when applied correctly during active growth periods and favorable temperatures.
Ortho Weed B Gon Chickweed, Clover & Oxalis Killer for Lawns Concentrate
Ortho Weed B Gon is designed to kill listed weeds, including oxalis, chickweed, and clover, while targeting roots for longer-lasting control. It’s a concentrated formula that requires mixing with water according to label directions. The product is formulated to be rainproof in about six hours after application, making it suitable for days with light afternoon showers. Use when oxalis and other weeds are actively growing and temperatures are below 90°F for best results. Apply evenly to the lawn and water in if required by the label.
Bonide Chickweed, Clover & Oxalis Killer Ready-to-Use
Bonide’s Ready-to-Use formula provides a convenient option for lawn care. It targets oxalis, chickweed, clover, dandelions, ground ivy, wild violet, and more—over 100 tough-to-control weeds. It’s designed for use on several turf types, with guidance to avoid treating desirable grasses beyond label directions. The spray nozzle allows easy, direct application without mixing. As with all herbicides, apply when weeds are actively growing and follow safe storage practices, ensuring pets and children are kept away until treated areas are dry.
Bonide Chickweed, Clover and Oxalis Killer Concentrate
This concentrate from Bonide is designed to be mixed with water prior to application. It targets oxalis, chickweed, clover, and other broadleaf weeds while preserving lawn grasses when used as directed. A label-specified weed list helps you verify compatibility with your lawn. If you prefer premixed options, Bonide also offers ready-to-use variants in the same family. Always mix according to the label to ensure proper dilution and effectiveness.
Ortho Weed B Gon Chickweed, Clover & Oxalis Killer for Lawns (32 Oz, Pack of 2)
This kit features two 32-ounce bottles designed for treating larger lawn areas. It kills oxalis, chickweed, and clover, delivering root-level kill to prevent rapid regrowth. The product is formulated to be turf-friendly when used as directed, and it’s ideal for homeowners with larger lawns needing efficient coverage. Follow the label for mixing ratios, application timing, and any restrictions on certain grasses.
BioAdvanced All-In-One Lawn Weed and Crabgrass Killer I
BioAdvanced All-In-One Lawn Weed and Crabgrass Killer I combines broadleaf weed control with crabgrass management in a single concentrate. Its strength lies in addressing tough weeds down to the root, including clover and oxalis, without harming established lawn grasses when used as directed. This option is suitable for homeowners seeking a comprehensive weed control solution across a broad spectrum of lawn weeds with a single product.
Ortho WeedClear Lawn Weed Killer with Comfort Wand (1 gal)
Ortho WeedClear Weed Killer for Lawns with Comfort Wand is designed to kill over 250 listed weeds, including clover and dandelion, down to the root. It’s formulated to protect the lawn when used as directed, with a wand applicator to facilitate targeted spraying. This product is suitable for large lawns and offers fast-acting results, allowing homeowners to treat weed outbreaks promptly while maintaining turf health.
Ortho WeedClear Lawn Weed Killer Ready-To-Spray
This ready-to-spray formulation targets a broad spectrum of lawn weeds, including dandelion, chickweed, clover, and crabgrass. It offers fast-acting control with visible results in hours when used as directed. The product is suitable for various lawn grasses and is designed for easy, on-the-go mixing and application.
Buying Guide: Key Purchase Considerations and Comparisons
When choosing a weed killer to manage oxalis in your lawn, consider the following:
- Weed spectrum: Look for products labeled to target oxalis, clover, chickweed, and related broadleaf weeds. Some formulas claim 200+ weeds, while others emphasize a narrower set.
- Turf safety: Check that the product is safe for your grass type. Some herbicides are designed for specific grasses; others are more universal but still require adherence to label directions.
- Formulation and convenience: Ready-to-use sprays are convenient for smaller areas; concentrates offer cost-efficient coverage for larger lawns but require mixing.
- Application timing: Oxalis is best controlled when actively growing, in moderate temperatures (generally below 90°F). Avoid applications under stress conditions like drought or extreme heat.
- Rainfast period: Some products claim rainproof or rainfast within a few hours. Plan applications when rain is not expected in the near term for optimal results.
- Root-kill capability: Products that reach the root and translocate into creeping weed systems tend to provide longer-lasting control and reduce regrowth.
- Environmental and safety considerations: Follow label directions for safe handling, storage, and pet/child restrictions after application. Choose products with lower environmental impact when possible.
- Cost per area: Compare bottle size, coverage area, and dilution rates to estimate overall cost per 1,000 square feet or similar benchmarks.
Bottom line: For oxalis control in lawns, select a product proven to target oxalis and other common lawn weeds, apply per label instructions, and align timing with weed growth and weather conditions. A combination of a potent concentrate and a ready-to-use option can fit different lawn sizes and maintenance routines, while products with root-kill action tend to reduce regrowth over time.