Whether you’re clearing overgrown flower beds or trimming tall grass along fences and driveways, having the right weed trimmer can make all the difference, especially for professional landscapers handling large properties. Models like the Milwaukee M18 FUEL Cordless String Trimmer and the Stihl FS 91 R Straight Shaft Gas String Trimmer combine excellent power, low vibration, and long runtime, making them two of the best gasoline weed trimmers available today. From battery-powered models with telescoping shafts to gas-powered trimmers built for high-speed cutting, this guide highlights the best weed trimmers available in 2025.
10 of the best weed trimmers on the market
1. Milwaukee M18 FUEL String Trimmer (best overall weed trimmer)
| Pros | Cons |
| – High torque for thick brush – Long battery life – Tool-free line loading | – Heavier than other cordless options – Premium price |
Key features:
- POWERSTATE™ brushless motor
- Up to 1-hour runtime on 8.0Ah battery
- 16″ cutting swath
- Rapid Load Trimmer Head
If you’re looking for a Cordless String Trimmer with the kind of muscle usually reserved for gas-powered trimmers, the Milwaukee M18 FUEL is one of the best weed trimmers available. Designed with landscaping pros in mind, it delivers consistent high-power performance with a Carbon Fiber Shaft that adds durability without sacrificing comfort. The trimmer head is easy to reload thanks to its Rapid Load system, and it’s backed by an 8.0Ah battery that handles large areas without slowing down. This model is a great fit for landscapers who prefer cordless trimmers but still want the punch of a gas-powered tool.
2. Stihl FS 91 R (best gasoline weed trimmer)
| Pros | Cons |
| – Powerful 28.4 cc engine – Durable and reliable for daily use – Great fuel efficiency | – Loud when compared to electric models |
Key features:
- 2-stroke gas engine
- Anti-vibration handle
- Multi-function control handle
- Solid driveshaft for attachments
The Stihl FS 91 R is a go-to choice for commercial crews who demand professional models that can withstand long days and heavy-duty string trimming on large properties. Its 28.4 cc 2-cycle engine delivers high power with excellent fuel efficiency, making it one of the best gas string trimmers on the market today. Landscapers praise the anti-vibration handle and multi-function controls, which make all-day use more comfortable, especially when cutting thick grass or tackling tricky edges around flower beds and fences.
Of course, with gas-powered trimmers, there’s a trade-off. You’ll need to keep up with regular maintenance and be prepared for a higher noise level compared to electric models or battery-powered trimmers. But if you’re managing larger areas and need a line trimmer that can run hard without quitting, the Stihl FS 91 R is a top pick.
3. DeWalt 60V MAX FLEXVOLT String Trimmer (best battery powered weed trimmer)
| Pros | Cons |
| – Long-lasting 60V battery with up to 45 minutes of runtime – 15″ cutting swath with dual-line capability – Ergonomic design reduces arm fatigue | – Heavier than some other battery-powered models |
Key features:
- 60V MAX FLEXVOLT battery system
- High-efficiency brushless motor
- 15″ cutting swath with 0.080″ line (accepts 0.095″)
- Variable speed trigger with Hi/Lo speed control
- Bump feed head with QuickLoad spool
The DeWalt 60V MAX FLEXVOLT String Trimmer is a great choice for landscapers seeking extended battery life without compromising on power. Its 60V MAX FLEXVOLT battery system delivers up to 45 minutes of runtime, making it ideal for tackling large areas and overgrown flower beds. The high-efficiency brushless motor provides consistent performance, while the 15″ cutting swath allows for efficient trimming. The ergonomic design minimizes arm fatigue, and the bump feed head with QuickLoad spool simplifies line replacement.
While the trimmer is slightly heavier than some other battery-powered models, its performance and durability make it a worthwhile investment for professionals. However, it’s not compatible with additional attachments, which may limit versatility for some users. Overall, the DeWalt 60V MAX FLEXVOLT String Trimmer offers a great value for those prioritizing long runtime and strong performance in their outdoor tools arsenal.
4. Echo SRM-2620T (best for dense brush cutting)
| Pros | Cons |
| – High-torque 2:1 gear ratio for tackling dense brush – Durable 25.4 cc professional-grade 2-stroke engine – Speed-Feed® 400 trimmer head for quick line reloads – Lightweight design | – Requires regular maintenance typical of gas-powered trimmers |
Key features:
- 25.4 cc professional-grade 2-stroke engine
- 2:1 high-torque gear ratio for increased cutting power
- 17″ cutting swath with Speed-Feed® 400 head
- Two-stage air filtration system extends maintenance intervals
- 20.6 fl. oz. fuel tank for extended runtime
- Dry weight: 12.5 lbs
The Echo SRM-2620T is engineered for professionals who regularly confront thick, overgrown vegetation. Its 2:1 gear reduction delivers 21% more torque compared to standard models, making it exceptionally effective for dense brush and tall grass trimming. The Speed-Feed® 400 trimmer head allows for rapid line replacement, minimizing downtime during extensive jobs.
While its high torque is advantageous for heavy-duty tasks, it may be less suitable for precision trimming around delicate areas. Like most gas-powered trimmers, it requires regular maintenance for optimal performance. Nonetheless, for landscapers dealing with challenging terrains and stubborn overgrowth, the SRM-2620T stands out as a reliable and powerful tool.
5. Makita Weed Trimmer XRU18PT1 (best dual-battery system)
| Pros | Cons |
| – Power equivalent to a 30cc gas string trimmer – Dual 18V batteries for extended runtime – Three-speed control with Automatic Torque Drive™ – Reverse rotation function clears entangled grass | – Heavier than some cordless models (13.6 lbs with batteries) – Shorter runtime at high speed settings |
Key features:
- 36V (18V X2) LXT® Brushless Motor
- 17″ cutting swath with 0.080″ twisted quiet line
- Three-speed control (Low: 4,000 RPM, Medium: 4,600 RPM, High: 6,000 RPM)
- Steel drive shaft for reduced vibration and longer equipment life
- Extreme Protection Technology (XPT™) for improved dust and water resistance
- Includes two 18V LXT® 5.0Ah batteries and dual port rapid charger
The Makita XRU18PT1 stands out with its dual-battery system, delivering 36V of power by combining two 18V LXT® batteries. This setup offers performance comparable to a 30cc gas string trimmer, making it suitable for professional landscapers tackling large properties. The 17″ cutting swath allows for efficient trimming, while the three-speed control and Automatic Torque Drive™ adjust power output based on the task, optimizing battery life.
However, users should note that operating at high speeds may reduce runtime. Overall, the Makita XRU18PT1 offers a powerful, cordless solution for those seeking to replace gas-powered trimmers without sacrificing performance.
6. Husqvarna 525LST (best lightweight gas option)
| Pros | Cons |
| – Lightweight at just 10.36 lbs – LowVib™ technology minimizes vibration for comfortable use – Large 21.98 fl oz fuel tank for extended runtime | – Louder operation compared to electric models – Requires regular maintenance typical of gas-powered trimmers |
Key features:
- 25.4 cc X-Torq® 2-stroke engine delivering 1.34 HP
- 19.3″ cutting swath with Tap ‘n Go trimmer head
- LowVib™ anti-vibration system for enhanced comfort
The Husqvarna 525LST is a top-tier gas-powered trimmer designed for professional landscapers who require a lightweight yet powerful tool for extended use. Weighing just over 10 lbs, it’s one of the lightest in its class, making it ideal for tackling large properties without causing excessive fatigue. The high-torque gearbox provides efficient cutting through dense grass and weeds, while the LowVib™ technology reduces vibrations, enhancing user comfort during prolonged operation. The generous 21.98 fl oz fuel tank allows for longer periods between refueling, increasing productivity on the job.
While the 525LST offers impressive power and efficiency, it’s worth noting that, like all gas-powered trimmers, it requires regular maintenance and produces more noise compared to battery-powered models. However, for professionals seeking a reliable and durable string trimmer that can handle demanding tasks with ease, the Husqvarna 525LST is a solid pick.
7. Ryobi 40V Expand-It String Trimmer (best for attachments)
| Pros | Cons |
| – Adjustable 13″–15″ cutting width for optimized performance or extended runtime – REEL EASY+ bump-feed head for quick and easy line reloading – Up to 71 minutes of runtime with the included 4.0 Ah battery | – May not match the power of higher-end gas-powered trimmers for extremely dense brush – Some users report challenges with the string feed mechanism |
Key features:
- 40V lithium-ion battery system
- Adjustable cutting width: 13″–15″
- REEL EASY+ bump-feed head for fast line reloads
- Variable speed trigger for enhanced control
- Attachment-capable: works with RYOBI EXPAND-IT and other universal attachments
The Ryobi 40V Expand-It String Trimmer Kit offers a versatile solution for landscapers and homeowners seeking a customizable tool for various yard maintenance tasks. Its attachment-capable design allows users to transform the trimmer into a variety of tools, such as an edger, pole saw, or blower, by utilizing RYOBI’s EXPAND-IT attachments or other universal options. The adjustable cutting width provides flexibility, allowing users to choose between a wider path for faster trimming or a narrower one for extended battery life. The REEL EASY+ bump-feed head simplifies line reloading, allowing for quick replacements without disassembling the head.
While the trimmer delivers impressive performance for most residential and light commercial applications, it may not match the power of higher-end gas-powered models when tackling extremely dense brush. Additionally, some users have reported challenges with the string feed mechanism, which may require occasional adjustments. Overall, the Ryobi 40V Expand-It String Trimmer Kit stands out for its versatility, ease of use, and compatibility with a wide range of attachments, making it a valuable addition to any outdoor tool collection.
8. Greenworks Commercial 82V String Trimmer (best electric weed trimmer)
| Pros | Cons |
| – Ultra-quiet operation (68 dB at 50 ft) – Low vibration for comfortable extended use – Eco-friendly with zero emissions | – Higher price point compared to some competitors – Limited availability in local retail stores |
Key features
- 82V lithium-ion battery system
- 16″ cutting swath with 0.095″ dual bump feed head
- Variable speed trigger with constant speed up to 6000 RPM
- Load N’ Go™ Max easy feed head holds up to 34 ft of line
The Greenworks Commercial 82V String Trimmer is an excellent choice for professionals working in noise-sensitive areas such as schools, hospitals, and residential neighborhoods. Its ultra-quiet operation at 68 decibels offers minimal disturbance, while the 1.2 kW brushless motor delivers performance comparable to a 31cc gas engine. The lightweight design and low vibration make it comfortable for extended use, reducing operator fatigue. Additionally, the Load N’ Go™ Max head simplifies line reloading, enhancing productivity on the job.
While the initial investment is higher than some other models, the Greenworks 82V String Trimmer offers long-term savings through reduced fuel and maintenance costs. Its eco-friendly design with zero emissions aligns with sustainable landscaping practices, making it a smart choice for environmentally conscious professionals.
9. Honda HHT35SLTA (best 4-stroke gas trimmer)
| Pros | Cons |
| – Runs on straight unleaded gas—no mixing required – Low emissions and quieter operation compared to 2-stroke models – Comfortable loop handle with vibration dampening | – Heavy (approx. 14.8 lbs dry weight) – Replacement string requires disassembling the head |
Key features:
- Honda GX35 35cc 4-stroke engine
- 17″ semi-matic bump feed head with Ultra Quiet® line
- 360° inclinable engine for operation and storage in any position
- Includes single harness and safety goggles
The Honda HHT35SLTA gas trimmer offers the convenience of a 4-stroke engine that eliminates the need for fuel mixing. Its 35cc GX35 engine delivers strong torque, making it adept at handling thick grass and heavy brush without bogging down. The Ultra Quiet® line and vibration dampening features enhance user comfort, while the flex shaft provides durability and reduced operator fatigue.
While the trimmer’s weight is on the heavier side, the inclusion of a single harness helps distribute the load during extended use. Some users have noted that line replacement can be cumbersome, requiring disassembly of the head. Nevertheless, for professionals seeking a reliable and powerful string trimmer with the benefits of a 4-stroke engine, the HHT35SLTA is a compelling choice.
10. Black+Decker LST136 (best for small jobs and edging)
| Pros | Cons |
| – Lightweight and easy to maneuver (approx. 7.8 lbs) – 2-in-1 design quickly converts from trimmer to edger – Automatic Feed Spool (AFS®) for continuous line feeding – Fast charging | – Not ideal for heavy-duty or commercial use |
Key features:
- 40V MAX* lithium-ion battery (1.5 Ah)
- 13″ cutting swath with 0.065″ line diameter
- POWERDRIVE™ transmission delivers increased torque
- Adjustable auxiliary handle and telescoping shaft for user comfort
The Black+Decker LST136 is an excellent choice for homeowners seeking a lightweight, versatile tool for maintaining small lawns and creating clean edges along flower beds and walkways. Its 2-in-1 design allows for quick conversion between trimming and edging, enhancing its utility. The AFS® provides continuous line feeding without the need for bumping, and the POWERCOMMAND® dial provides control over power and runtime, adapting to various tasks.
While the LST136 excels in precision and ease of use, it’s not designed for tackling dense brush or extensive commercial projects. The single-line feed system may require more passes in thicker vegetation. However, for routine maintenance and detailed work in smaller yards, this trimmer offers a great value and user-friendly experience.
What to consider before buying a weed trimmer
Before you pick up your next weed wacker or cordless grass trimmer, it’s worth taking a moment to consider how you’ll actually use it, especially if you’re a landscaper juggling different job sites and terrain types. Here are the top features and factors to think about:
Power source: Gas vs. battery vs. corded electric
Gas-powered trimmers bring high power and long runtimes, ideal for large properties and thick brush. But they’re louder and need regular maintenance. The best battery-powered weed trimmers are quieter, emission-free, and increasingly strong thanks to modern Ah battery systems like the Milwaukee M18 FUEL or Greenworks 82V. Corded electric models, even the best electric weed trimmers, are best for small lawns, but you’re tethered to an outlet, which limits range.
Cutting swath size: Larger heads for faster jobs
A wider cutting width (like 15–17″) means you can cover more ground in less time, key for commercial crews trimming large areas. Smaller trimmer heads are fine for tight spaces, but take longer overall.
Weight and ergonomics: Important for all-day use
If you’re trimming all day, weight and comfort matter. Look for tools with telescoping shafts, shoulder straps, or vibration control like in the Stihl FSA 91 R or Husqvarna 525LST. A well-balanced tool with low vibration offers a better experience and reduces fatigue.
Line reloading system: Speed and ease of use
Fast, tool-free Line Loading is a must, especially if you’re dealing with frequent trimmer string breaks. Systems like REEL EASY+ or Rapid Load save time and frustration in the field.
Noise restrictions: Especially in residential/commercial zones
In noise-sensitive areas, electric models and battery-powered trimmers are the preferred choice. The Greenworks Commercial 82V, for instance, operates at a remarkably quiet 68 dB; perfect for work around schools, hospitals, or early-morning jobs.
Durability and maintenance: For long-term value
Gas-powered trimmers tend to last longer, especially professional models with features like carbon fiber shafts and steel driveshafts. That said, newer battery-powered models with IPX water ratings and solid construction are catching up fast.
Interchangeable attachments: Multi-functional use
Want more bang for your buck? Look for attachment-capable systems like the Ryobi Expand-It that let you swap your string trimmer head for a pole saw, edger, or even a blower. It’s a smart way to expand your outdoor tools collection without buying a whole new unit.
Bottom line
From powerful gas-powered trimmers like the Stihl FS 91 R and Honda HHT35SLTA to quiet, battery-powered models like the Milwaukee M18 FUEL and Greenworks 82V, there’s no shortage of options when it comes to finding the best weed trimmer for your landscaping needs. Whether you’re managing large properties, maintaining flower beds, or looking for a lightweight trimmer for smaller yards, the right choice comes down to how much power you need, how long you need to run, and what kind of terrain you’re tackling.
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