The following selection highlights popular, readily available weed killers that are commonly considered safe for Zoysia grass when used as directed. Each product targets common broadleaf weeds and crabgrass while aiming to minimize harm to your lawn. Use these guidelines to compare formulations, application methods, and safety considerations for a healthy Zoysia lawn year-round.
| Product | Brand | Focus |
|---|---|---|
| Ortho Weed B Gon Chickweed, Clover & Oxalis Killer for Lawns | Ortho | Kills chickweed, clover, oxalis; safe for zoysiagrass when used as directed |
| Ortho WeedClear Lawn Weed Killer Ready-To-Spray | Ortho | Kills dandelion, clover, chickweed; safe on Zoysiagrass when used as directed |
| Prime Source Celsius WG | Prime Source | Post-emergent weed control; professional quality; fast-acting |
| BioAdvanced All-In-One Lawn Weed and Crabgrass Killer | BioAdvanced | Kills broadleaf weeds and crabgrass; suitable for lawns when used as directed |
| Ortho WeedClear Weed Killer for Lawns with Comfort Wand | Ortho | Kills 250+ weeds; targeted lawn protection; guided application with comfort wand |
Note: Always follow label directions for your specific grass type, and test on a small area if you’re unsure about tolerance. Zoysia can be sensitive to certain herbicides, so understanding the active ingredients and application timing is essential.
Ortho Weed B Gon Chickweed, Clover and Oxalis Killer for Lawns
Ortho Weed B Gon is formulated to kill tough weeds including chickweed, clover, creeping Charlie (ground ivy), and oxalis. It acts to root out listed weeds while designed to spare the lawn when used as directed. This product is suitable for a variety of grasses, including Zoysia, Buffalograss, fescues, Kentucky bluegrass, and ryegrass, making it a versatile option for mixed-species lawns. Application timing and rate per the label help minimize risk to Zoysia while providing effective control of common broadleaf weeds.
Southern Ag Amine 2,4-D Weed Killer
Southern Ag Amine 2,4-D Weed Killer provides a low, economical use rate and broadleaf weed control. Its suitability for turf and various landscapes, including turf, pastures, and ditch banks, makes it a flexible choice for homeowners wanting a cost-effective option for weed control. For Zoysia, apply according to the label, taking care to water in after application to reduce drift and ensure proper absorption. This product targets many broadleaf weeds without compromising healthy turf when used as directed.
Prime Source Celsius WG
Celsius WG is a post-emerge weed control product popular in professional settings for its mix-ability and fast-acting results. The Easy Mix Packet means no measuring required, simplifying adoption for homeowners. While designed for turf, including high-traffic landscapes, users should verify compatibility with Zoysia and apply according to the label. The product is positioned as golf course quality, offering dependable performance for controlling broadleaf weeds that invade lawn spaces.
BioAdvanced All-In-One Lawn Weed and Crabgrass Killer I
BioAdvanced All-In-One Lawn Weed and Crabgrass Killer I combines a broad-spectrum weed control with crabgrass management in a single concentrate. It’s designed to kill listed lawn weeds and crabgrass down to the root, aiming to provide a robust solution for homeowners seeking an all-in-one product. As with any concentrated formula, accuracy in measuring and following label directions is essential to protect Zoysia while achieving effective weed suppression over time.
Ortho WeedClear Weed Killer for Lawns with Comfort Wand
Ortho WeedClear Weed Killer for Lawns with Comfort Wand provides broad weed control with a focus on 250+ weeds, including dandelion and clover. The Comfort Wand helps with precise application, potentially reducing drift and protecting nearby Zoysia turf. This product claims fast-acting results and is designed for use on a range of lawn grasses when applied per label instructions. For Zoysia, ensure proper watering after application and avoid stress periods such as extreme heat or drought to maximize safety and performance.
All products above are formulated to address common lawn weeds while aiming to protect Zoysia when used as directed. Reading the label for each product—specifically active ingredients, application rates, site restrictions, and the grass types listed—will help determine the best fit for your lawn’s needs and conditions.
Buying Guide
Key purchase considerations when selecting a weed killer for Zoysia:
- Active ingredients and selectivity: Look for products that target broadleaf weeds without harming warm-season grasses like Zoysia. 2,4-D-based formulations are common, but confirm turf compatibility on the label.
- Post-emergent versus pre-emergent: For existing weeds, post-emergent formulations are needed. Pre-emergents prevent weed germination but do not address established weeds.
- Weather and timing: Apply during favorable conditions (cooler temps, non-windy days) and avoid application before heavy rain or drought stress periods to minimize turf injury and ensure proper weed uptake.
- Application method: Ready-to-use sprays ( Comfort Wand or similar) offer convenience and precision, while concentrates require proper mixing—follow the label for rates and calibration.
- Lawn type compatibility: Verify Zoysia tolerance and compatible grass species listed on the label. Some products specify St. Augustinegrass, Bermudagrass, or Centipedegrass as exceptions; ensure Zoysia is explicitly supported.
- Root absorption and residual control: Some products kill to the root and offer residual prevention for up to several weeks or months. Consider your weed pressure and whether you need ongoing suppression.
- Environmental and safety considerations: Use protective gear as recommended and avoid application near water sources or to stressed turf. Proper storage and disposal are essential for household safety.
- Cost versus coverage: Compare per-acre or per-lawn area coverage to determine value, especially when choosing concentrates versus ready-to-use formats.
In practice, a combination approach—targeting existing weeds with a post-emergent product, and planning for seasonal applications to prevent regrowth—can provide the most reliable results for Zoysia lawns. Always rotate active ingredients when possible to reduce weed resistance and follow local guidelines for lawn care and chemical use.