10 Best Herbicide For Zoysia Grass 2025 in the United States

The Ortho WeedClear Weed Killer for Lawns Concentrate is designed to treat up to 16,000 square feet of lawn without harming the grass, including zoysia grass, when used as directed. It is highly effective, capable of killing over 250 common weeds such as dandelions, clover, and poison ivy, making it a versatile option for maintaining a weed-free lawn. Users can see visible results within hours, and it becomes rainproof in just one hour after drying, allowing for quick and resilient application.

The product is safe for pets and people to re-enter the treated area once the spray has dried. It is easy to apply using an Ortho Dial N Spray or a tank sprayer, adding to its convenience. The active ingredients are formulated to target weeds specifically without damaging the grass, which is crucial for users who want to protect their lawns. It's important to follow the usage directions carefully to avoid any potential harm to the grass.

For those looking to maintain a healthy, weed-free zoysia grass lawn, Ortho WeedClear Weed Killer offers an effective and user-friendly solution.

The Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Concentrate is a potent option for those needing long-term weed control. It is designed to act both as a post-emergent herbicide, killing existing weeds, and as a pre-emergent, preventing new weed growth for up to 12 months. This can be particularly beneficial for maintaining areas like driveways, walkways, and gravel paths, though it's not necessarily targeted for lawns, especially those with Zoysia grass, which might be too sensitive for such a strong formula.

The product is rainproof in just 30 minutes and shows visible results in a few hours, which is quite efficient. It provides coverage up to 1600 square feet with its 32-ounce concentrate, making it economical for large areas. However, its broad-spectrum nature means it isn't selective about what it kills, so careful application is crucial to avoid damaging desirable plants. It is user-friendly, with clear mixing instructions for spot treatment or even spraying.

The product's potency and long-lasting effect make it a robust choice, but it may be overkill for someone simply looking to maintain a Zoysia grass lawn. For such specific needs, a product designed particularly for lawns might be more suitable.

The Ortho GroundClear Weed and Grass Killer2 Concentrate is a versatile herbicide designed to kill a wide range of weeds and grasses, including dandelions, chickweed, crabgrass, and moss. This product is a post-emergent herbicide, meaning it works on existing weeds rather than preventing new ones.

It contains ammonium nonanoate as the active ingredient and is fast-acting, offering visible results within just 15 minutes of application and becoming rainproof after 2 hours of drying. This makes it suitable for quick and effective weed control in areas like patios, landscapes, driveways, and walkways.

It is important to note that it should not be used on lawns or grasses you want to keep, such as zoysia grass, as it will kill them as well. The concentrate should be diluted according to label directions and applied to dry, actively growing weeds at any time of the year. Each 32 fl. oz. container can treat up to 600 square feet. The product is OMRI listed, making it compliant with organic standards, and has a good safety profile, though caution should be exercised to avoid contact with desirable plants. For those looking for a powerful and fast-acting weed killer for areas other than lawns, this product is a solid choice.