10 Best Lawn Scarifier 2025 in the United States

The Greenworks 40V (2-In-1) Dethatcher / Scarifier is a versatile lawn care tool designed to help keep your yard healthy. This device is battery-powered, using a 40V lithium-ion battery, which offers the advantage of being cordless and easy to maneuver without the limitations of a power cord. The included 5Ah USB battery and rapid charger ensure that you can get back to work quickly after recharging.

Its 14-inch working width allows you to cover more ground efficiently, making it suitable for medium to large-sized lawns. The quick-swap tine reels are a standout feature, allowing you to easily switch between dethatching and scarifying tasks with minimal effort. The tines are made of stainless steel, which maintains sharpness longer, ensuring effective performance over time.

The depth adjustment feature is highly versatile, with 5-position settings ranging from minus 1/2-inch to plus 3/4-inch, allowing for customized lawn care based on your specific needs. However, at 35.3 pounds, the unit is on the heavier side, which might be a consideration for those who prefer lighter equipment. The removable grass collection bag is a convenient addition, helping to keep your lawn tidy by collecting debris as you work. The price point may be a bit high for some budgets, and the reliance on battery power means you need to ensure the battery is sufficiently charged before use. This product is best suited for homeowners with medium to large lawns looking for a reliable and convenient solution for dethatching and scarifying.

The Greenworks 13 Amp 14-Inch Corded Dethatcher / Scarifier is a versatile and powerful tool designed to help maintain a healthy lawn. Its corded electric power source provides consistent and reliable performance, eliminating the need to worry about fuel or battery life. The 14-inch working width is suitable for small to medium-sized lawns, making it efficient for homeowners with average yard sizes. The lightweight design, at 28.7 pounds, ensures that it is easy to maneuver, reducing user fatigue during extended use.

The 3-position tine depth adjustment feature allows for customization depending on the lawn's needs, helping to remove matted layers and promote healthy growth. Additionally, the quick release system enables easy switching between dethatching and scarifying functions, adding to its versatility. However, there are a few drawbacks to consider. The corded nature of the device means you will need access to an electrical outlet and may have to manage the cord during use, which could be less convenient than a cordless model. The product does not include a collection box, so you will need to manually rake up the debris, which could be an added chore.

While the lightweight design is beneficial for maneuverability, it might not be as durable or robust as heavier, more industrial-grade models. The Greenworks 13 Amp 14-Inch Corded Dethatcher / Scarifier is a solid choice for homeowners looking for an easy-to-use, reliable tool for maintaining their lawns, particularly for those who do not mind managing an extension cord and handling debris cleanup manually.

The Sun Joe AJ798E is a corded electric lawn scarifier designed for small to medium-sized lawns. Its 12-amp motor powers a 12.6-inch wide path, helping you cover lawn areas efficiently without the fuss of gas or oil maintenance. The scarifier uses spring steel tines, which are tough enough to remove thatch and cut grass roots, encouraging healthier, thicker grass growth. You can choose from five different depth settings to tailor how deeply it rakes, which is great for different lawn conditions.

It comes with an 8-gallon detachable collection bag that makes discarding debris easy and keeps your yard cleaner during the process. Weighing 21 pounds, it's light enough for most users to handle comfortably. However, since it is corded, your movement is limited by the length of the power cord, which might not suit larger lawns or areas without convenient outdoor power outlets. Also, while the 12.6-inch working width is decent, it’s narrower than some gas-powered models, so it might take longer on bigger lawns.

Assembly is required, but the straightforward design should make it manageable for most. If you’re looking for a low-maintenance, easy-to-use tool to keep a smaller lawn healthy and free from thatch, this Sun Joe model is a reliable choice, especially with its AirBoost technology helping maximize thatch pickup and the added benefit of a 2-year warranty for peace of mind.