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Kentucky Bluegrass lawn

A Comprehensive Guide To Grass Seed Fertilizer for Your Lawn and Garden

A well-maintained lawn or garden can have many benefits. It is suitable for the environment because it provides a healthy habitat for wildlife, reduces noise, and creates a cooling effect during hot summer days. 

Beautiful lawns or gardens are also simply lovely to look at. Exposure to the outdoors and greenery reduces stress and muscle tension, improves attention, and increases feelings of happiness. 

So if you already have the space to plant a nice garden or lawn, there’s no excuse not to put in the work!

The first step to having a pleasant lawn is to plant lush, green grass. But that is easier said than done. Without the proper techniques and tips, your lawn could quickly turn patchy and brownish, making your house look more abandoned than thriving with life. And one of the best ways to guarantee a carpet of beautiful green grass is to use the proper lawn fertilizers. 

In this guide, we will provide the best tips and tricks for lawn fertilizers so you can grow the garden of your dreams. 

Why Is Lawn Grass Fertilizer Important for Your Landscape?

Growing a healthy green lawn or garden takes some work. Many people think it’s easy until they try doing it. 

So, why not avoid some common mistakes by learning about the importance of lawn fertilizer?

There are different types of grass you can pick that fit your location and climate, but once you’ve chosen correctly for your region and property, you should work on choosing the best lawn fertilizer. 

Lawns need food too, and when it comes to grasses they thrive on plant food. Lawn fertilizer provides the necessary nutrients to avoid a dead-looking garden and enhances the nutrients already present, such as phosphorus, potassium, and other minerals. 

Getting your lawn fertilizer proportions wrong could result in an unpleasant-looking lawn. In addition to the aesthetic factor, poor soil also affects the overall state of your garden. It could exacerbate issues like:

  • Weeds and dead grass
  • Increases in insect populations
  • A higher probability of yard fungi or other parasites
  • Brown patches


The right choice of lawn fertilizer can make or break your yard and even impact the overall makeup of the regional soil pH. That’s why many laws and regulations have been passed on what ingredients should and should not be in lawn fertilizer. 

So understanding the types of lawn fertilizer and how to fertilize your lawn are aspects of lawn care that are incredibly important. They can make your garden project successful, preserve the soil pH in your region, and even act as a form of insect control.

How to Feed Your Lawn the Right Way

Planting a beautiful garden is an art, which also has many rules and techniques. The quicker you learn the way you should be taking care of it, the better are your chances of getting it right.

You might be aware that you should be applying the best lawn fertilizer and mowing, but there are other activities you should do like weeding, aeration, pest control, and more.


How to feed lawn the right way


Step #1: Testing Your Soil pH

A soil test can tell you what types of nutrients are already present in the soil, its pH levels, and what might be lacking. After your soil test, aim for a more acidic soil with pH levels between 6.5 to 7.0, but do not overdo it. 

Step #2: Fertilizing With the Right Percentage of Nutrients

This process means that you have to fertilize your lawn with the necessary nutrients to ensure healthy growth with regular watering. Fertilization depends on what nutrients the land is lacking. 

Step #3: Preventing and Treating Weeds 

Weeds are pesky and annoying to pull out all the time, so you can prevent them by using various weed chemicals, such as herbicides. You can also engage in matting, which prevents weed growth through the soil. 

If you haven’t managed to prevent weeds properly, then you should try to treat them. Using chemicals could damage other things in your garden, so your safest option is to remove them by hand. 

Step #4: Aerating

Aeration involves creating holes in the soil to give it more access to the atmosphere. This makes it possible to grow a healthier garden and is a process that should be done once a year or more. 

Step #5: Frequent Watering According to Grass Types

Watering is a must if you are aiming to grow a good garden. There are plenty of ways to water your soil, such as using a hose or installing a sprinkler system. You should make sure to avoid over or under watering your garden as it could have adverse effects on your lawns. 

Step #6: Mowing

Use a lawnmower to mow your lawn every few weeks. Make sure to have the right mower for your garden and adjust it depending on the grass's length. 

What Is the Best Fertilizer for Grasses?

There are a number of fertilizer formulas that you will see in any advertisement. Each type has its properties and effects on the soil. Here are four of the best fertilizer options for your lawn, regardless of grass type.

1) Organic

This type of food is made up of animal, plant, or other natural minerals, like rock phosphate, manure, bone meal, cottonseed meal, or fish byproducts. Organic feed is excellent for applying on your lawn during the fall because it has a slower release, or as a maintenance fertilizer

2) Urea

Urea is a form of lawn food processed from ammonia and is highly rich in nitrogen. This is excellent for more acidic soils and grasses. It would be best if you mixed urea with soil before applying it to avoid losing other beneficial chemicals. It has a very quick release and is relatively cost-effective compared to other types of product. 

3) Chemical

This feed option is made from products derived from animals or rocks, or petroleum. Because of its chemical composition, it should be refined to concentrate the nutrients so the soil can quickly absorb them. Chemical feed has a quick release and is ideal for spring applications so you can get your soil ready in time for grass roots. 

4) Ammonium Sulfate

The opposite of urea feed is ammonium sulfate, and it's one great option for alkaline soil. Because it is rich in sulfur, it lowers the soil's pH, making it ideal for quick root growth. Before use, you should dilute it in water or apply ammonium sulfate as a top dressing for your lawns. 

Should You Apply Lawn Fertilizers or Regular Fertilizers?

Depending on the stage of growth your lawn is in, it might need starter fertilizers or regular fertilizers. Usually, if you are beginning a fresh new lawn or repairing one, you will need starter fertilizers rather than regular fertilizer. 

Both fertilizers are necessary, but starters have a greater amount of phosphorus and nitrogen, which fresh lawns need quite a bit of in the beginning. 

If you already have a lawn, they don’t need as much phosphorus and potassium in the formulas, so the regular feed application will work. To better understand which type of fertilizers you need, you should learn more about NPK ratios. 

What Is the NPK Ratio and Why Does It Matter?

All lawns, even golf courses, require nitrogen (N), phosphorus (P), and potassium (K). The nitrogen, phosphorus, and potassium (NPK) numbers you see on a bag of fertilizer will tell you which one is right for your application. But, depending on the stage your lawn is in, it might need a different way of applying feed with various ratios of it.

  • A nitrogen application makes your grass greener and is essential for growing healthy leaves
  • Phosphorus impacts root development and growth, and increases bloom
  • Potassium helps all plants fight off diseases and makes them more durable to extreme temperatures


If you see nutrient bags with the label “10-10-10”, it means they contain 10 pounds each of nitrogen, phosphorus, and potassium. These nitrogen, phosphorous, and potassium ratios can help you decide whether you should get starter fertilizers or regular ones.

  • Starter feed or seed starters are richer in phosphorus, have higher-grade potassium, and include a quick release of nitrogen. These help your new grass grow faster and build stronger, deeper roots. 
  • Regular feed contains an NPK ratio of 1-2-1, and you should choose a slow release version because it benefits more mature plants and grass

When to Start the Fertilization Process?

The timing of when to apply nutrients for new grass is just as important as the type of nutrients you use. Your new grass fertilization timing depends on the type of grass you plan to grow and what your lawn care goals are. 

All recommendations will tell you that applying nutrients during winter is a bad idea. That's because snow and cold does not make for a good soil condition. As for the other three seasons, here’s when you can apply fertilizers. 


Lawn care graphic guide


Applying Fertilizer During Summer

Fertilizing your soil during the summer, such as in July or August, is acceptable but not entirely ideal. The heat will make the soil dry, so your fertilizer might not have the desired effect. What you should be doing during the summer is applying weed or crabgrass preventer product and mowing as much as possible for the best lawn care. 

Leave the Fertilizer for the Fall

Applying fertilizer to soil during the fall is perfect timing, especially if you are looking to grow new grass seed for cooler seasons. The fertilizer will be in the soil for enough time to provide the right nutrients and make sure that your grass is as luscious as the weather allows. 

If you apply fertilizer in early September, make sure to put water in the fertilizer and have a high nitrogen source. If you’re seeding in November, you should add water to the fertilizer, but also use spray for broadleaf weeds. This makes it possible to prevent weeds in the fall, which is easier done in cooler seasons than in spring. 

Starting Your Grass Seed Fertilization in Spring

Spring is an acceptable time to start fertilizing your garden or lawn. You should aim to start the process anytime from April to June. Depending on the type of fertilizer you use, you will have to regularly water your lawn during the summer. Water is critical if you are using a slow-release fertilizer such as organic fertilizer. 


Now that you are familiar with lawn fertilizer, its importance, types, and how to choose the right products, start planning your lawn and pick the best fertilizer from Nature’s Seed many varieties. 

Nature’s Seed is one of the leading suppliers in turfgrass, agricultural, and reclamation seeds in North America. Operating since 1988, the company offers high-quality seeds with elite varieties that include superior genetic traits for color, drought tolerance, density, and disease and pest resistance.

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