Speedwell is a common lawn weed that can spread quickly if not controlled. This guide highlights effective, widely available lawn weed killers that target speedwell and other common lawn pests. It explains who each product is best for, plus practical tips for timing, application, and avoiding lawn damage. Ideal buyers include DIY homeowners, large-property managers, and anyone seeking a trusted, ready-to-use or concentrate solution to manage speedwell and related weeds.
| Product | Best For | Why It Stands Out |
|---|---|---|
| Ortho Weed B Gon Chickweed, Clover & Oxalis Killer for Lawns | Home lawns needing fast, root-killing control on broadleaf weeds | Kills weeds to the roots and is safe on major lawn grasses when used as directed. |
| Spectracide Weed Stop For Lawns Plus Crabgrass Killer AccuShot Refill | Those needing broad coverage of 470+ weed types with quick visible results | Visible results in as fast as 5 hours and broad weed spectrum. |
| Gordon’s SpeedZone Lawn Weed Killer | Large lawns that require fast results and wide coverage | Fast-acting and effective on common turfweed species; good for reseeding after treatment. |
| Pulverize Weed Killer for Lawns Concentrate | Budget-conscious buyers seeking concentrated formulas | Concentrate that covers a defined area; targets multiple weeds including speedwell variants. |
| Scotts TouchUp Weed Control for Lawn | Smaller areas or targeted spot treatment on densely weeded patches | Ready-to-use spray designed for turf-safe application with minimal setup. |
Ortho Weed B Gon Chickweed, Clover & Oxalis Killer for Lawns
Key features: Kills weeds to the roots; safe on Buffalograss, Fescues, Kentucky Bluegrass, Ryegrass, and Zoysiagrass when used as directed. It targets chickweed, clover, oxalis, creeping Charlie, and other listed weeds. Best for homeowners who want a ready-to-use solution for common broadleaf invaders in cool-season or warm-season lawns.
Who it’s best for: Homeowners seeking reliable post-emergent weed control for established lawns without extensive turf damage. Choose this if speedwell appears alongside other broadleaf weeds such as chickweed or oxalis.
Caution: Always follow label directions to avoid applying where desirable grasses are stressed; misapplication can impact non-target plants.
Spectracide Weed Stop For Lawns Plus Crabgrass Killer AccuShot Refill
Key features: Kills 470+ weed types, including dandelion, chickweed, clover, crabgrass, and yellow nutsedge; visible results in as fast as 5 hours. Designed to target weeds while sparing the lawn when used as directed. Best for larger properties needing rapid, broad-spectrum control.
Who it’s best for: Property owners who want a quick, broad solution for multiple weed species and want to see early progress. Better for those who manage lawns with mixed weed populations, including speedwell alongside crabgrass.
Caution: Ensure proper labeling for your grass type and follow mixing directions; over-application can harm sensitive turf.
Gordon’s SpeedZone Lawn Weed Killer
Key features: Visible results in hours; reseed in about two weeks; covers 14,000 to 18,000 square feet. Rapid and effective against common turf weeds in many turfgrass types.
Who it’s best for: Large-property owners and homeowners with extensive lawns who want a fast-acting solution with wide coverage. Choose this if speedwell coexists with other persistent weeds and reseeding is planned soon after treatment.
Caution: May affect newly seeded areas; plan reseeding windows accordingly to minimize turf damage.
Weed Killer for Lawns Ready to Use
Key features: Controls weeds such as dandelion, speedwell spp., creeping buttercup, and white clover; one application can kill most weeds in a single treatment. Best for spot treatment in smaller areas or patches.
Who it’s best for: Small to medium lawns or garden beds where precise targeting of weeds like speedwell is desired without a full lawn-wide spray. Useful for maintenance between larger treatments.
Caution: Not ideal for very large lawns if you need quick, uniform coverage; spot treatment may miss some weed colonies if not applied thoroughly.
Scotts TouchUp Weed Control for Lawn
Key features: 24-ounce ready-to-use spray; will not harm lawns when used as directed. Targets common lawn weeds, offering convenient spot treatment and maintenance for weed-prone patches.
Who it’s best for: Homeowners who prefer a ready-to-use bottle for quick, on-the-spot weed control in high-traffic or problem areas. Best for light to moderate weed pressure, including speedwell in localized pockets.
Caution: Not designed for broad, uniform application across a large lawn; use as a supplement to broader weed-control plans when speedwell is widespread.
Buying Guide: Speedwell-Proofing Your Lawn
What should you consider when selecting a weed killer for speedwell and similar lawn weeds?
- Weed spectrum: If speedwell is your primary concern, look for products labeled to kill speedwell and closely related weeds. Many broadleaf killers cover speedwell as part of a larger list.
- Lawn type compatibility: Some products are designed for specific grasses; ensure the formula you choose is safe for your lawn species and avoids damage to Kentucky bluegrass, fescues, or other grasses you have.
- Post-emergent vs pre-emergent: Speedwell is typically addressed with post-emergent weed killers. If crabgrass or other annual grasses are a concern, you might also consider a pre-emergent option for seasonal prevention.
- Application method and area: Choose ready-to-use sprays for spot treatment or concentrates for larger areas. AccuShot and similar delivery systems can help with precise application.
- Timing and regrowth: Some products show visible results within hours; others require multiple applications. Coordinate with reseeding plans if you plan to refresh bare patches after weed control.
- Safety and following directions: Always read the label for mixing instructions, weather considerations, and safety precautions to protect people, pets, and non-target plants.
- Re-application windows: If weeds return or new growth appears, verify how soon you can re-apply under the label to avoid turf stress.
Practical Application Tips
- Watering: Apply when weeds are actively growing and the lawn is dry to help absorption. Avoid applying before heavy rain unless the label permits.
- Targeted treatment: For speedwell patches, use spot treatments to minimize exposure to surrounding grass and prevent turf scorch.
- Seeding windows: If reseeding after weed control, plan to allow two weeks or more before introducing new seed, as directed by the product label.
Frequently Asked Questions
- Q: Can speedwell be killed with a broadleaf weed killer? A: Yes, many broadleaf weed killers target speedwell among other broadleaf species when used according to label directions.
- Q: Is it safe to use weed killers on all lawn types? A: Most products specify which grasses are safe; always confirm compatibility with your lawn species before application.
- Q: How quickly will I see results? A: Some products show results in as little as 5 hours, while others may take longer depending on weed type and environmental conditions.
- Q: Should I pre-treat or post-treat for speedwell? A: Speedwell is typically addressed with post-emergent treatments; pre-emergents prevent new weeds from germinating but do not control existing ones.
- Q: Can I reseed after applying weed killer? A: Many products allow reseeding after a specified period; follow the label to balance weed control with turf recovery.
- Q: Can I use multiple products at once? A: Avoid combining products unless the labels explicitly permit it; using multiple products can increase turf stress or cause unintended damage.