How Does Temperature Affect My Lawn? | Find Out Here (2024)

How Does Temperature Affect My Lawn? | Find Out Here (1)

Jump to:

  • When Does Grass Stop Growing
  • What Temperatures Cause Grass To Stop Growing
  • How To Prepare Your Lawn For Colder Temperatures
  • How To Care For Grass When It Starts Growing
  • The Benefits of Professional Lawn Care

Wouldn’t it be great if our lawns could stay lush and green all year long? While this would be a dream come true for many people, the reality is that grass must grow — or not — with the changing seasons. Depending on the average temperatures where you live, your lawn may grow differently.

Find out how your grass may be impacted based on changes in temperature with this helpful guide.

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When Does Grass Stop Growing?

Grass requires a lot of elements to grow healthily and normally, including just the right amount of heat, light, water, and nutrients. When grass doesn’t get enough of these key components, it goes into dormancy as a form of protection. When there is not enough sunlight, too little water, or extreme temperatures, grass will stop growing until conditions allow growth to be more viable.

As seasons change, resources such as sunlight and ideal temperatures cause growth patterns in the grass to change, too. Grass grows particularly fast during late spring and early summer in response to adequate amounts of water and sunlight and warmer temperatures. In the middle of Summer, grass will have less growth due to the excessive heat but as fall begins you’ll see it begin to grow again. Then, in late fall and through all of the winter grass stays dormant as the key components needed for continuous growth become less scarce.

This goes to say that anytime grass is met with extreme changes in temperature, such as heatwaves and freezing temperatures, dormancy will begin to take place.

What Temperatures Cause Grass to Stop Growing?

Healthy lawns will stay dormant during summer droughts and the cold temperatures of winter. How hot or cold can it be before grass stops growing in Minnesota and other states?

Grass generally stops growing once temperatures drop to below the range of 50-55 degrees Fahrenheit or reach above 90 degrees Fahrenheit. Since soil takes longer than air to lose and retain heat, it will take a period of a least a few days for a temperature change to impact the growth of grass. Consistently warmer or cooler temperatures send signals to the root system of the grass that it is time to become dormant.

How Does Temperature Affect My Lawn? | Find Out Here (2)

How to Prepare Your Lawn for Colder Temperatures

It’s a good idea to make a plan to mow your lawn a few times before the first frost of the season. In general, you should cut your grass after it has become dormant but before the frost. Ideally, the height of your grass should be between 2 1/2 and 3 inches in height by the time cold weather hits.Fertilizing your grass one last time before hard frosts set in can also make a big difference in the condition of your lawn, allowing the grass to get an extra boost of nutrients while it stays dormant for the winter season.

Do your best to avoid cutting grass that has already frozen. Doing so can cause stress to the grass and greatly hinder its ability to recover, resulting in dead, yellow spots in your lawn. It’s helpful to pay attention to your grass and its growth patterns. Once you’ve noticed the grass has noticeably stopped growing, you may want to consider stopping mowing until it “wakes” from the dormant state.

As you prepare your lawn for the upcoming winter months, our can help. From lawn mowing to fertilizing, we can help you feel confident that your lawn will come back from its dormant state as healthy as ever.

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How to Care for Grass When It Starts Growing

Once warm weather arrives, it may not be easy to determine if your lawn is dead or if it is still dormant. If your entire lawn appears to be the same brown color, the chances of it being dormant are high. However, if there are some areas in which the grass has become green while others have remained brown, those spots could indicate where the grass has died.

Proper care can help bring grass out of dormancy if it is ready. You can take certain steps, such as:

  • Maintaining a good watering schedule
  • Avoiding an excessive amount of fertilizer
  • Controlling weeds
  • Reducing the amount of traffic on the grass to help eliminate stress

Once your grass has come out of its dormant state, you may be wondering when you should start cutting it again.Generally speaking, if it is below 50 degrees Fahrenheit, it is still considered to be too cold to mow your lawn. The ideal temperatures to mow are between 50 to 80 degrees Fahrenheit.

Does grass stop growing at a certain height? Once temperatures have become consistently warmer, it is a good idea to follow the one-third rule, which means to never clip off more than one-third of the grass’ current height in one mowing session. That’s because the height at which you mow grass determines the stimulation of grass growth and density. Cutting too much of your grass in one mow can inhibit healthy growth and cause damage.

The Benefits of Professional Lawn Care

We understand the sense of pride homeowners feel when their lawn is in excellent condition. That’s why trusting in the experts at Green & Black provides many benefits, such as:

  • Stronger, healthier grass that bounces back from inclement weather
  • Greener, thicker grass that adds to your property’s curb appeal
  • Reduced number of pests due to keeping weeds under control and the grass consistently mowed

For many years, the professional staff at Green & Black have been dedicated to providing customers with superior lawn care services. Our mission is to help you create and maintain a gorgeous property that makes you proud. Our team is knowledgeable, friendly, and reliable, so you can feel confident in a job well done each and every time.

At Green & Black, we offer quality lawn care services to Minnesota commercial properties and residents, including but not limited to:

  • Grass cutting
  • Weed removal
  • Leaf blowing
  • Lawn irrigation
  • Lawn fertilization
  • Snow plowing

No matter the size of your commercial or residential property, we’re ready to make it look its best. Contact us today to get a free quote for better care for your lawn.

How Does Temperature Affect My Lawn? | Find Out Here (2024)

FAQs

How Does Temperature Affect My Lawn? | Find Out Here? ›

Grass generally stops growing once temperatures drop to below the range of 50-55 degrees Fahrenheit or reach above 90 degrees Fahrenheit. Since soil takes longer than air to lose and retain heat, it will take a period of a least a few days for a temperature change to impact the growth of grass.

What temperature should you not mow the lawn at? ›

Although grass does not stop growing in winter, it grows so slowly when temperatures go below 40 degrees Fahrenheit that mowing your lawn between November and March isn't necessary (scroll down to see the step you must follow if you need to mow your lawn during winter).

Will grass grow in 85 degree weather? ›

Between 50 and 75 degrees, cool season grasses will grow most vigorously. The root system will start pulling water, oxygen, and nutrients from the soil while the leaves of the grass will absorb sunlight and carbon dioxide*. Temperatures over 85 degrees will slow the growth of cool season grasses.

What does a heat stressed lawn look like? ›

How to spot heat and drought stress. When your grass is stressed, footprints that would normally spring back up stay down and limp for longer than 30 minutes. As stress worsens, your grass tips will brown. At its worst, browning tips progress to brown patches across your lawn.

How to recover grass from heat stress? ›

Water in the morning to avoid the afternoon's high evaporation rates and the possible fungus risks your lawn could face if irrigated at night. Shoot for 6-10 am. Adjust fertilizer applications to avoid damage. In high stress periods, light fertilizer applications will keep your lawn healthy or assist in recovery.

What temperature is bad for grass? ›

Grass generally stops growing once temperatures drop to below the range of 50-55 degrees Fahrenheit or reach above 90 degrees Fahrenheit. Since soil takes longer than air to lose and retain heat, it will take a period of a least a few days for a temperature change to impact the growth of grass.

Is it better to leave your lawn long or short for winter? ›

The ideal grass height for winter is between 2 inches and 2.5 inches. This keeps grass short enough to resist disease spread, but not so short that it becomes overly stressed by cold temperatures.

How to keep grass green in extreme heat? ›

8 Secret Tips To Keep Your Lawn Green in Summer Heat
  1. Watering your lawn. ...
  2. Prevent water run-off. ...
  3. Fertilising. ...
  4. Deal with the weeds. ...
  5. Mowing the grass. ...
  6. Take care of the summer lawn pests. ...
  7. Aerate your lawn. ...
  8. Repairing summer damage on your lawn.
Dec 25, 2018

How often should you water your lawn in 85 degree weather? ›

For hot days that exceed 85 degrees, you may need to water three or four times a week. It's very important that established lawns receive at least 2.5 inches of water per week during this time. It's important, however, that you do not water every day.

Is 85 too hot to mow? ›

Mowing your lawn when the heat is above 85 degrees often creates a devastating browning, occurring in about a day. Once your lawn is brown, it usually take weeks of regular rainfall and/or irrigation to help replace the lost water and get new leaf blades growing.

What is the best fertilizer for heat stress grass? ›

Scotts® TurfBuilder® UltraFeed™is an excellent choice for fertilizing lawns that tend to get stressed in the summer. It holds onto nutrients until your lawn needs them, then releases them. Because of this, a single feeding can last up to 6 months.

Will my grass grow back after heatwave? ›

If you're lucky your lawn will usually recover rapidly with renewed rainfall after the drought. If not, simply wait until the heat wave passes and begin your lawn care routine again.

Should I cut my grass during a heatwave? ›

Mowing a lawn in the middle of a summer heatwave is one of the worst things you can do to it. When temperatures reach around 85 degrees, grass, like many other green plants, begins to suffer – especially cool-season grasses such as Kentucky bluegrass, perennial ryegrass, and fine fescues.

Will heat burnt grass come back? ›

It can return to its initial green and lush look in a few weeks, or it can take months. It's a game of patience, and the timeline depends on the grass type, damage level, weather, soil conditions, and lawn care practices. Sometimes, much of the grass is dead and homeowners must reseed the lawn.

How to tell if grass is stressed? ›

Like any plant, grass reacts to summer's high temperatures and lack of water with wilting, browning, or even death. Here's how to detect drought stress: Locate a brown patch, and pull on the grass. If it won't pull easily from soil and is firmly rooted, it's likely brown due to drought.

Should you mow a stressed lawn? ›

Mowing is stressful on your grass. Because of this, you don't want to cut when it's already under incredible environmental stress, like a lengthy dry spell or severe drought. When drought-stressed, it's hard enough on your grass; don't compound it and mow during this time.

Is it OK to mow when its 90 degrees? ›

Mowing a lawn in the middle of a summer heatwave is one of the worst things you can do to it. When temperatures reach around 85 degrees, grass, like many other green plants, begins to suffer – especially cool-season grasses such as Kentucky bluegrass, perennial ryegrass, and fine fescues.

When should you not cut grass? ›

In winter: mowing is usually not necessary, unless the weather is mild and the grass is still growing. In this case, mow occasionally on a high cut setting. Never mow if the ground conditions are very soft, wet or frozen, or during spells of cold, drying winds.

Is it bad to cut the grass when it's hot? ›

In fact, some cool-season grasses will go dormant during the hot summer months until early fall. During a heat wave—a period of abnormally hot weather that lasts longer than 2 days—it's recommended that you do not mow your lawn.

When should I stop mowing my lawn? ›

The right time to stop mowing the lawn is when grass stops growing. You may still need to run the mower to mulch leaves on the lawn until as late as December, depending on weather. An early snowfall that doesn't stick around isn't a signal to stop mowing.

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