Tackling a lawn with grass that has grown to 15 inches can feel like a monumental task. This isn’t your typical weekly trim; it’s a rescue mission for an overgrown yard that requires the right tool for the job. Using a standard mower on such tall grass can lead to clogged decks, stalled engines, and an uneven, ragged cut that can harm your lawn’s health. The key to success lies in selecting equipment specifically designed to handle this kind of challenge, which is why we’ve compiled a list of the 6 Best Lawn Mowers for 15 Inch Grass Height to guide your decision.
When grass reaches this height, you need more than just power. You need a mower with a high cutting height adjustment, a robust engine that won’t bog down, and a deck design that efficiently manages a large volume of clippings. Whether you’re reclaiming a neglected property or maintaining a meadow-like area, the right mower will make the process smoother and protect your grass from stress. Let’s look at the features that matter most and the specific models that excel in these demanding conditions.
What to Look for in a Mower for Tall Grass
Before we get into our specific recommendations, it’s helpful to know what separates a capable tall-grass mower from a standard one. Paying attention to a few key specifications will ensure you choose a machine that can handle the job without frustration.
First and foremost, check the maximum cutting height. While our focus is on 15-inch grass, you won’t be cutting it down to 2 inches in one pass. You’ll need a mower that can be set high for the first cut—often between 4 to 6 inches—and then gradually lowered. Look for models with a wide range of height adjustments. Secondly, consider the power source and type. For very tall, thick grass, a powerful gas-powered brush mower or a heavy-duty electric model with a high-torque motor is often the most effective. Finally, think about mobility and deck design. Larger, rear wheels are invaluable for navigating rough, uneven terrain, and a clean deck design helps prevent grass from wrapping around the axle or clogging the discharge chute.
6 Best Lawn Mowers for 15 Inch Grass Height
This selection includes a variety of mower types to suit different properties, preferences, and budgets. Each one has the strength and features to effectively manage grass that has gotten out of hand.
1. Greenworks 80V 21-Inch Cordless Brushless Lawn Mower
For those who prefer a battery-powered solution without sacrificing power, the Greenworks 80V is a top contender. Its brushless motor provides exceptional torque to power through thick, tall grass without stalling. With a cutting height adjustable up to 4 inches, it’s perfect for taking that first high cut on overgrown lawns. The 21-inch steel deck and dual-port battery system (allowing for a spare battery to be ready) make it a reliable and quiet workhorse for medium-sized yards.
2. Honda HRN216VKA 21-Inch Versamow Lawn Mower
Honda is renowned for its reliable and powerful engines, and this model is no exception. The HRN216VKA features a versatile cutting height range of up to 4 inches and the MicroClip Twin Blade system, which mulches clippings so finely they virtually disappear. This is a huge benefit when dealing with tall grass, as it reduces the need for raking and bagging. Its NeXite deck is durable and resistant to corrosion, making it a long-lasting investment for tough mowing conditions.
3. EGO POWER+ LM2135SP 21-Inch Self-Propelled Mower
EGO has set the standard for battery-powered lawn care, and this self-propelled model is a standout. It offers a high cutting height of up to 4 inches and the unique SelectCut Load Force Multiplier technology, which automatically increases torque to the blade when it senses a heavy load. This is exactly what you need when tackling dense, 15-inch grass. The self-propelled feature with variable speed control makes navigating hilly or uneven terrain much less physically demanding.
4. Troy-Bilt TB370 XP 163cc Walk-Behind Mower
If you’re looking for a dependable and affordable gas-powered option, the Troy-Bilt TB370 XP is an excellent choice. It boasts a sturdy 163cc engine and a cutting height that adjusts up to 4.25 inches. Its TriAction cutting system utilizes three distinct actions to lift, cut, and recycle grass clippings for a cleaner finish. With large 11-inch rear wheels, it handles rough ground with ease, making it ideal for properties that are not perfectly manicured.
5. Craftsman M310 163cc 21-Inch Gas Walk Mower
Craftsman is a trusted name in tools, and their M310 mower delivers solid performance for tall grass tasks. It features a durable 163cc engine and a single-lever height adjustment that lets you easily change between 1.25 and 4 inches. The 3-in-1 capability (bag, mulch, or side-discharge) gives you flexibility in how you manage the large volume of clippings from an overgrown lawn. It’s a straightforward, powerful machine built to get the job done.
6. Earthwise 16-Inch 12-Amp Corded Electric Lawn Mower
For smaller, overgrown areas where a cord is manageable, the Earthwise corded electric mower offers consistent power without the fuss of gas or batteries. Its 12-amp motor provides plenty of torque, and it has a generous cutting height range of up to 4 inches. The 16-inch deck is more compact, making it easier to maneuver in tight spaces and store. This is a great, eco-friendly option for reclaiming a small patch of tall grass without a large investment.
Tips for Mowing Very Tall Grass Successfully
Even with the best equipment, mowing 15-inch grass requires a smart approach. Your first pass should never be at the lowest setting. Instead, set your mower to its highest cutting height and remove only the top one-third of the grass. This might mean you need to make two or even three passes over several days to gradually bring the lawn down to your desired height without shocking the grass. Always ensure the grass is dry to prevent clumping and clogging, and be sure to clear the area of any hidden debris like branches or stones before you begin.
Choosing the right mower transforms the daunting task of cutting 15-inch grass from a chore into a manageable project. Whether you opt for the cordless freedom of the EGO, the proven reliability of a Honda, or the budget-friendly power of a Troy-Bilt, each model on our list provides the necessary features to restore your lawn to a healthy, well-kept state. By understanding your needs and following a gradual cutting process, you can achieve great results and maintain a beautiful lawn with ease.