Best Greenworks Scarifier of 2026
Greenworks offers a range of cordless scarifiers that fit their 24V and 40V battery ecosystems. We have compared specs, owner reviews, and build quality across five models to find the best scarifier for thatch removal, moss control, and lawn renovation in 2026.
Quick answer
The Greenworks 40V 16-inch Scarifier (G40LM46SP) is our top pick for its powerful motor, dual scarify/aerate modes, and large collection box. For smaller lawns, the 24V 12-inch model offers excellent value and lighter handling.
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- Tested on specs (power, torque, PSI)
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Research updated June 2026.
Greenworks 40V 16-inch Scarifier (G40LM46SP)
Best combination of power, width, and battery life for medium to large lawns.
| Product | Best For | Key Spec | Rating | Price |
|---|---|---|---|---|
| Greenworks 40V 16-inch (G40LM46SP) | Overall / Large Lawns | 16in, 40V, 50L box | 4.5/5 | Mid |
| Greenworks 24V 12-inch (G24LM12SP) | Small Lawns / Budget | 12in, 24V, 30L box | 4.3/5 | Low |
| Greenworks 40V 14-inch (G40LM14SP) | Medium Lawns | 14in, 40V, 40L box | 4.4/5 | Mid |
| Greenworks 24V 10-inch (G24LM10SP) | Very Small Lawns | 10in, 24V, 25L box | 4.1/5 | Low |
| Greenworks 40V 16-inch (G40LM46SP) + 2 Batteries | Extended Run Time | 16in, 40V, 2x4Ah | 4.5/5 | High |
Greenworks 40V 16-inch Scarifier (G40LM46SP)
Best OverallPros
- Powerful 40V motor handles thick thatch
- Large 50L collection box reduces emptying stops
- Dual scarify and aerate modes for versatile lawn care
Cons
- Heavier than 24V models at 15 kg
- Battery not included in base kit
The G40LM46SP is the flagship Greenworks scarifier, designed for lawns up to 500 sq m. Owner reviews consistently praise its ability to pull out deep thatch and moss without stalling. The 16-inch working width covers ground quickly, and the 50-litre collection box means fewer interruptions.
Some users note the weight can be tiring on uneven ground, but the large wheels and adjustable handle help. It uses the Greenworks 40V battery system, which is shared with many other garden tools. For larger lawns, this is the most capable model in the range.
Greenworks 24V 12-inch Scarifier (G24LM12SP)
Best for Small LawnsPros
- Lightweight at 10 kg, easy to manoeuvre
- Good value for small to medium lawns
- Uses affordable 24V battery system
Cons
- Smaller collection box fills quickly
- Less power for very thick thatch
The G24LM12SP is a practical choice for lawns up to 200 sq m. It is noticeably lighter than the 40V models, making it easier to push and lift. Owner reviews highlight its effectiveness on light thatch and moss, especially when used twice a year.
The 30-litre box requires more frequent emptying, but the overall weight and price make it a strong entry-level option. It shares batteries with other Greenworks 24V garden tools, which is convenient for users already in that ecosystem.
Greenworks 40V 14-inch Scarifier (G40LM14SP)
Best for Medium LawnsPros
- Good middle ground between width and weight
- 40V power handles moderate thatch well
- 40L box is a decent size for medium lawns
Cons
- Not as fast as the 16-inch model
- Battery sold separately
The G40LM14SP sits between the 12-inch and 16-inch models. It offers 40V power in a 14-inch width, which is a good match for lawns around 300 sq m. Owner reviews mention it handles most thatch levels without bogging down, and the 40-litre box is a practical size.
It is slightly lighter than the 16-inch version, making it easier to store and carry. For users who want 40V performance but do not need the maximum width, this is a solid choice. It uses the same batteries as the larger model.
Greenworks 24V 10-inch Scarifier (G24LM10SP)
Best for Very Small LawnsPros
- Very compact and easy to store
- Lightest model at 8.5 kg
- Lowest price in the range
Cons
- Small width means more passes needed
- Not suitable for thick thatch
The G24LM10SP is the smallest and lightest Greenworks scarifier. It is designed for very small lawns or tight spaces where manoeuvrability is key. Owner reviews say it is effective for light maintenance scarifying but struggles with heavy moss or deep thatch.
The 25-litre box is small, but the machine is so light that emptying is quick. It is a good entry-level tool for users with a small garden who want to try scarifying without a large investment. It uses the 24V battery system.
Greenworks 40V 16-inch Scarifier (G40LM46SP) + 2 Batteries
Best Extended Run TimePros
- Two batteries for uninterrupted work
- Same powerful performance as #1
- Charger included in the kit
Cons
- Higher price than the bare tool
- Heavier with two batteries
This kit version of the G40LM46SP includes two 4Ah batteries and a charger. For users with larger lawns, this eliminates the need to wait for a single battery to recharge. Owner reviews note that two batteries are enough to scarify a 500 sq m lawn in one session.
The performance is identical to the bare tool model, but the convenience of having spare batteries is significant. If you do not already own Greenworks 40V batteries, this kit is the better value. It also means you have batteries for other tools in the ecosystem.
What to check before buying a Greenworks scarifier
Lawn size is the primary factor. The 40V models suit lawns over 200 sq m, while 24V models are better for smaller spaces. Check your existing battery system: if you already have Greenworks 24V or 40V tools, choose the scarifier that matches to save on battery costs.
Working width affects speed. A 16-inch model covers more ground per pass than a 10-inch model, but it is heavier and more expensive. Consider storage space: the larger models are bulkier to store. Also check the depth adjustment range: most Greenworks models offer 3 to 5 settings, which is sufficient for most lawns.
Mistakes to avoid when scarifying
Do not scarify a wet lawn. The blades can tear the grass rather than cut through thatch. Wait for dry conditions. Avoid setting the depth too deep on the first pass. Start with a shallow setting and increase if needed. Over-scarifying can damage the lawn.
Do not skip collecting the debris. Leaving thatch on the lawn after scarifying can smother the grass. Always use the collection box or rake up the material. Finally, do not scarify more than once or twice a year. Spring and autumn are the best times for most grass types.
FAQs
Can I use a Greenworks scarifier on artificial grass?
No. Scarifiers are designed for natural grass only. Using one on artificial turf will damage the blades and the surface.
How often should I scarify my lawn?
Once or twice a year is sufficient. Spring and early autumn are the best times for most grass types in the UK and US.
What is the difference between scarifying and aerating?
Scarifying removes thatch and moss from the surface. Aerating pokes holes in the soil to improve air and water flow. Some Greenworks models do both.
Do Greenworks scarifiers come with a battery?
Some models are sold as bare tools without a battery. Others come as kits with batteries and a charger. Check the product description carefully.
Can I use a Greenworks mower battery in a scarifier?
Yes, if the voltage matches. Greenworks 24V and 40V batteries are interchangeable across tools within the same voltage range.
What is the warranty on Greenworks scarifiers?
Greenworks offers a 2-year warranty on most garden tools. Check the specific model for details. Battery warranties are typically shorter.
Are Greenworks scarifiers noisy?
They are quieter than petrol scarifiers but still produce noise. Ear protection is recommended for extended use.
Can I scarify a lawn with moss?
Yes. Scarifying is an effective way to remove moss. Use a shallow setting first and collect the debris to prevent re-infestation.
What size lawn is best for a 24V scarifier?
Lawns up to 200 sq m are ideal for 24V models. Larger lawns benefit from the extra power and battery capacity of 40V models.
Do I need to water the lawn before scarifying?
No. The lawn should be dry. Scarifying a wet lawn can pull up grass roots and cause damage.
Our verdict
The Greenworks 40V 16-inch Scarifier (G40LM46SP) is the best overall choice for its power, width, and collection capacity. For smaller lawns or tighter budgets, the Greenworks 24V 12-inch Scarifier (G24LM12SP) offers excellent value and lighter handling. Choose the kit version of the 40V model if you need batteries.