When Is It Too Hot To Fertilize Your Lawn?

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When is it too Hot to Fertilize Your Lawn?

The Basics of Fertilizing Your Lawn

Fertilizing your lawn is an important part of keeping it healthy and green. Fertilizer helps supply essential nutrients to the grass, and it also helps to promote healthy root growth. It’s important to use the right type of fertilizer at the right time of year, and to make sure you don’t over-fertilize. But when is it too hot to fertilize your lawn?

The Dangers of Hot Weather Fertilizing

When it’s very hot outside, fertilizer can actually do more harm than good. The heat can cause the fertilizer to burn the grass, and it can also cause the fertilizer to leach out of the soil and be washed away by rain. This means that you won’t get the full benefit of the fertilizer, and can even result in damage to your lawn.

When is it Too Hot to Fertilize?

In general, temperatures over 90 degrees Fahrenheit are too hot for fertilizing. You should also take the humidity into account when deciding whether or not to fertilize. If the temperature is over 90 degrees and the humidity is high, then it’s definitely too hot to fertilize your lawn. It’s also a good idea to avoid fertilizing in the middle of the day, when the sun is at its hottest.

Alternatives to Fertilizing in Hot Weather

If it’s too hot to fertilize, there are still some things you can do to take care of your lawn. Watering your lawn is a great way to keep it healthy in hot weather. You can also mow your grass with a higher blade setting, which will help to shade the soil and keep it cool. Finally, you can use mulch or compost to help retain moisture in the soil and provide some nutrients to the grass.


Fertilizing your lawn is an important part of keeping it healthy and green, but it’s important to pay attention to the temperature and humidity when deciding when to fertilize. Temperatures over 90 degrees Fahrenheit and high humidity can cause the fertilizer to burn the grass, so it’s best to wait until the weather cools off before fertilizing. In the meantime, watering your lawn and using mulch or compost are great ways to keep your lawn healthy in the hot weather.

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