How Often Should You Fertilize Your Lawn?

How Often Should You Fertilize Your Lawn

In this post, I will be answering your question of how often should you fertilize your lawn so read on…

Fertilizer is very convenient and helpful thing as it is beneficial to homeowners and their lawns. It makes things easier for you as it helps speed up the growth process while keeping your grass healthy and lush. However, it can do more harm than good if not used properly and without care. Knowing how often you should fertilize is very important because it can prevent you from overdoing or under-doing it, ending up with poor results, and prolonging the process. 

How often should you fertilize your lawn?

It’s essential to apply fertilizers at the right time. Also, it would be best if you did not use not more than necessary. Constant overfeeding is the last thing your lawn needs. It does nothing to benefit your turfgrass. Instead, it can be damaging to the environment. The most vital step is to fertilize during the season when your grass is doing the most growing. 

Cool-Season Grasses

Common turfgrass varieties, such as Kentucky bluegrass, perennial ryegrass, bentgrass, tall fescue and fine fescue, are the cool-season grasses. These types of grass grow most vigorously in winter; therefore, they should be fertilized in fall. You can also fertilize again in late spring to early summer, but only if your lawn gives indications as it needs it. A healthy lawn generally doesn’t require a second round of fertilizer.

Warm-Season Grasses

Bermuda grass, St. Augustine, zoysia, centipede and buffalo grass are some prominent examples of warm-season grasses. These kinds of grasses go partially dormant in winter, doing most of their growing during the summer season. They should be fertilized in early summer, so they have plenty of nutrients for their active period. If there is a need, they can be fertilized again in August.

If you want to get the most out of using fertilizer, applying fertilizer at the correct time is essential. It also saves plenty of time and money without spending it rashly on trial and runs errors. You have to keep in mind that overfeeding is a real thing and can be dangerous for the environment. Besides that, it also hinders growth in your lawn, so you have to be careful. 

When you are using fertilizer, you must apply it while your grass is growing the most. Typically you can make applications to your lawn once or twice a year. It is enough to keep your lawn healthy, but depending on the type of grass, the amount needed can vary, and you can make changes according to that. 

Specific types of cool-season grasses, such as Kentucky bluegrass and Perennial Ryegrass, do most of their growing and flourishing in the winter. The reason is that fertilizing during the fall and winter will yield the best results. On the other hand, if you own the grass that grows the most during the summertime, it is best to fertilize during the warmer months. This step is to ensure your lawn gets the proper nutrients. These types of grasses go entirely dormant in the winter. They do not need much attention when it comes to fertilizer when it’s cold.


It’s also important to choose the right day once you’ve narrowed it down to the right time of year to apply fertilizer. The best time and day to fertilize is the day after a hard rain or significant watering. Check the weather forecast. Avoid applying fertilizer right before a rainstorm. That is because a heavy downpour can cause many nutrients to leach out of the soil before the grass can utilize them. 

For getting satisfactory results, use a slow-release fertilizer because it provides better nutrition in the long run. After you are done applying fertilizer, gently water your lawn just enough to wash the fertilizer off the leaves and into the soil.

When to Fertilize Lawns

When grass is actively growing, typically from March or April through June and September through October, fertilizer is best applied. It also depends on the grass species. You better plan to make three or four applications of fertilizer each year. Also, apply fertilizer at a rate of 1/2 to 1 pound nitrogen per 1,000 square feet of lawn with each application. 

Remember, never apply more than 4 pounds of nitrogen per 1,000 square feet of lawn each year. You can apply it every four to six weeks while the grass is sharply growing if the fertilizer has nitrogen in a fast-release form. Slow-release fertilizers are applied again after six to nine weeks. The most important thing is that the last fertilizer application should be at least six to eight weeks before the anticipated first frost date.

How Often Should You Fertilize Your Lawn

What Types of Fertilizer to Use for Grass

You can nurture your grass into a soft green carpet if you use the right fertilizer and give it the care it needs. 

Quick Release

These are designed to make all of the nutrients they contain immediately available to your grass. If you wish to correct quickly nutrient-deficient soil that is impairing your grass’s health and vigour, this fertilizer allows you that. 

Slow Release

These fertilizers are often used in the spring to promote steady growth throughout the year because they are designed to deliver nutrients to the soil over a long time. They are designed to remain in the root zone of your grass over time. Moreover, they are less likely to leach out of the soil than fast-acting fertilizers.


Can I fertilize my lawn every two weeks?

Applying a fertilizer every two weeks isn’t recommended by the professionals. It has drastic effects. That will likely lead to many problems, such as lawn burn, excessive grass growth, and pollution to waterways. There is also a natural way of feeding your lawn every two weeks. It would be to leave the grass clippings on the lawn surface when mowing your grass. 

What is the best lawn fertilizer for early spring?

In spring, a 20-5-10 lawn fertilizer is a good basic mix to use. Slow-release lawn fertilizers usually break their nutrients over a longer period so that you can wait longer between applications. 

What fertilizer will make my grass green?

The three most important fertiliser ingredients are nitrogen, potassium, and phosphorus, each with a distinct purpose. Nitrogen is responsible for the green colour of plants. It makes your lawn lush and green. If the conditions are drastic and stressful, use potassium to make your grass durable and resilient during stressful conditions. Phosphorus fosters strong root development with time.

What if it rains after I fertilize my lawn?

The vast majority of the time, rain after a fertilizer application is not a problem at all. Just remember your lawn needs about 1/2″ of water after you fertilizer. Water is very useful, and it helps activate your fertilizer.


For most lawns, applying fertilizer once or twice a year is more than enough. It will keep your grass green and healthy. The second factor that decides is your climate, but the type of grass you have is also important. The key is to fertilize during the season when your grass is growing the most. 

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