For a beautiful and healthy lawn, you need to know what height to cut grass at. Mow your lawn to a height of 3-4” for optimal grass health. Cutting grass too short can weaken roots and increase weed growth.
For some, mowing the lawn is a gratifying task that leads to more enjoyment of their tidy and well-kept outdoor space. Though for others, lawn mowing is a dreaded summer chore that is something to be avoided as much as possible. If you fall into the latter group, you may believe that cutting your grass as short as possible is the best way to reduce how often you need to mow your lawn. If you are cutting your grass as short as possible, you might be mowing less, but you’re also making a big mistake. Mowing your lawn as short as possible is killing your grass. So, you may be mowing less, but that is only because your lawn is struggling to grow. When considering what height to mow lawn for optimal results, you’ll need to ensure that you are cutting your lawn at the right height to protect your lawn’s health.
If you’ve been wondering about what height is best to cut grass, we have the answers you are looking for. In this post, we dive into some of the most commonly asked questions surrounding what height to cut grass and provide helpful tips to help you protect your lawn’s health. Whether you are looking to achieve the most beautiful lawn on your street or simply don’t want to kill your grass, the following tips will help you protect your lawn’s health and ensure you spend more time enjoying your yard this season.
As trusted providers of lawn care services in Durham Region, we are always looking for ways to support you in achieving your goal of having a beautiful lawn that is ready for you to enjoy. Don’t forget to check out our post, How Often Should You Mow Your Lawn? Our Tips for Keeping Your Lawn Healthy in Any Season provides more helpful tips to support your lawn’s health. The combination of cutting your grass often enough and to the right length will boost your success when it comes to achieving and maintaining a beautiful lawn.
Frequently Asked Questions Regarding What Height is Best to Cut Grass
What is the Best Height to Mow Your Lawn?
When it comes to knowing what height to cut grass, the optimal length may be taller than you’d expect. Within the GTA and Durham Region, 3-4 inches is the optimal height for grass. This means that you shouldn’t cut your grass until it is around this range. Once you’ve cut it to the 3-4” length, you’ll want to be sure that you stick to a routine to maintain this height and also support your lawn with plenty of water.
Keep in mind that when considering the question, what height should I cut my grass, the current state of your grass can play a role in determining what height is best to cut grass. If your grass is dry, waiting for the longer end of the height range is a good idea as shorter lengths will require more watering and can be hard to keep up with.
Why Does the Height of Grass Matter?
If you are looking to create a beautiful and healthy lawn, knowing what height should grass be cut at is important. It is common for homeowners to cut their grass too short, and when doing this, they unintentionally damage their lawn’s health. The longer you grow a lawn, the deeper the root system will be. This is important as a deeper root system will provide you with a healthier lawn. Knowing what height you should cut your grass plays a role in helping you protect your lawn. In most cases, a length of 3-4” is the appropriate length to keep your grass and cutting to this length will be optimal.
If keeping your grass at the optimal height is a challenge for you, a lawn cutting service could be what you need to achieve the beautiful and healthy lawn you desire. Consider hiring a landscaping company to take the guesswork out of creating and maintaining a healthy lawn.
What Height Should I Mow My Lawn in The Spring?
If you are looking to get off to a great start with your lawn care routine, you might wonder about what height to mow lawn first time in spring. Spring is a time of rapid growth for grass, and it is the perfect time to help develop a healthy root system. For this reason, keeping your lawn within the standard 3-4” range is a good idea. You may want to consider lawn maintenance services to complete seasonal tasks, such as a lawn dethatching service during the spring so that your lawn can be ready to grow healthy all season long.
What Height Should I Set My Lawn Mower At?
If you hate mowing it can be very tempting to set your lawn mower as low as possible to reduce how often you need to mow. However, this can quickly lead to you killing your lawn as doing so will damage the root system. When you want to know what height to set lawn mower to for optimal results, the 3-4” range is ideal. This will ensure that your grass is cut to the optimal length.
If you have questions beyond what is the best height to set lawn mower, we have answers for you. Our post, Lawn Mower Maintenance: Everything You Need to Know to Keep Your Lawn Mower Blades in Top Condition, provides insight into what you’ll need to know to keep your mower in top shape and ready for use all season long.
What Can I Do If I’ve Cut My Lawn Too Short?
If you’ve looked into what height grass cut range is best to protect your lawn, you may have found that you’ve been cutting it too short. If this is the case, the best thing you can do is to leave your lawn alone and let it grow. Once it has had time to recover, keeping your lawn within the 3-4” length range can help to protect its health and ,in time, will provide you with the beautiful and healthy lawn you’ve been dreaming of.
If your lawn is in truly rough shape from cutting it too short, a grass cutting service can help you revive your lawn and protect its health moving forward.
How Professional Lawn Mowing Services Can Help You Enjoy Your Lawn More
At Mr. Trim Lawn & Garden Services, we are a family-run business that has been in operation for more than 40 years. We provide grass-cutting and lawn-mowing services for customers who prefer a more hands-off approach to maintaining their property. Achieving and maintaining the optimal grass length for your lawn’s health requires you to stay on top of a grass-cutting routine. If you do not have time for or simply do not want to complete lawn mower maintenance tasks, we can help you protect your lawn. Our professional lawn mowing and lawn maintenance services help you spend more time enjoying your property and less time working on it.
Stop overthinking about what height is best to cut grass for optimal lawn health and appearance. At Mr. Trim Lawn & Garden Services, we are here to help. We provide weekly and bi-weekly grass-cutting services to help you spend more time enjoying your lawn, and also provide lawn care programs to support your lawn’s health, including aeration, fertilizer treatments, grub control, overseeding, and weed control. Contact us today to learn more about how we can support you in spending more time enjoying your lawn and less time completing lawn mower maintenance tasks.

Aaron grew up in Bowmanville, working along side his dad for as long as he can remember. Aaron went to school to get his small engine repairs certificate to help keep all the machines running well. Aaron is very knowledgeable with all lawn care needs. He took and passed the pesticide license course so he could better help his customers. Aaron always makes sure to determine what your lawn needs and can give recommendations on how to make it better.
Mr. Trim has many awards from, three best rated, This Week Readers Choice, Durham Region Readers Choice and more. Both owners Lisa & Aaron have their pesticide licences. Their biggest accomplishment of all is having loyal customers that trust them year after year for all their lawn, garden and snow clearing needs.