find the best fertilize nitrogen fertilizer for lawns

Best Nitrogen Fertilizer for Lawns | Top 10 Picks

Just like humans, plants also require nutrients to grow and carry out essential bodily functions daily. Deprived of the necessities for too long might take away their beauty, or even worse, force them to die prematurely.

There’s nothing more depressing than watching your lawn wither away day after day. Or staring at the stunted growth of your favorite plant, aching to see an inch of progress. It’s a sheer recipe of frustration. 

If weak lawn growth is the cause of your distress, then all you need is the list of best lawn fertilizer, especially nitrogen fertilizer for lawns to choose from.

Best 10 Nitrogen Fertilizers for Lawns in 2022:

Picking the best nitrogen fertilizer for the garden can often be a daunting task. There are several factors you have to keep in mind, including the characteristics of the compound and also the type of soil you wish to apply it on. 

Overwhelmed by the various choices, you might end up making the wrong decision. Saint Augustine/St Augustine grass or Bermuda grass, whatever is on your garden, you need to choose wisely. To help you, here is a detailed list of the best nitrogen fertilizers for your lawn:

1. Milorganite Organic Nitrogen Fertilizer

It is safe to say that 62036-MW Organic Milorganite Fertilizer is a 32 lb bag of dried microbes! This is a result of productive recycling as it is made up of nutrients recycled from unclean water. The microbes die after consumption, and the clean water is sent to a nearby river.

The best thing about this compound is that it’s compatible with any plants on your lawn. It’s enriched with iron, which gives your yard a more vibrant shade of green. 

Slow-release nitrogen ensures that it doesn’t contaminate your groundwater, and helps your lawn grow at a steady pace. This doesn’t contain any salts, so you don’t have to worry about burning.

Special Features
  • Can be applied to all kinds of plants
  • Doesn’t contain harmful salts
  • Excludes groundwater pollution
  • Clean water is a by-product

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2. Simple Lawn Solutions Fertilizer

This efficient NPK fertilizer offers the best of both worlds. It consists of both fast release and slow-release nitrogen. The 70% fast-release nitrogen stimulates your lawn to grow faster and gain a color greener than ever. The 30% slow release keeps your grass-fed with essential nutrients for more extended periods.

Simple Lawn Solutions has an abundance of nitrogen. Therefore, it’s perfect for grass that’s withering from nitrogen deficiency. It also strengthens the roots and allows better growth due to the amount of phosphorus and potassium in it. It doesn’t even contain any harsh chemicals that may have a toll on the lawn.

Special Features
  • Has balanced quantities of fast and slow-release nitrogen
  • Potassium and phosphorus make roots stronger
  • Makes your lawn grow thicker and faster
  • Doesn’t harm the turf

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3. Liquid Kelp Organic Seaweed Extract

Tired of plants that take too long to bloom? Then fret no more as Liquid Kelp consists of the best seaweed extract, which is considered a miracle plant food. This steadily improves grass seed germination causing your plants to grow faster and remain healthy. 

Moreover, it induces strong root growth, which makes sure no wind or drought can deter its progress.

It also induces chlorophyll development, which makes the leaves look greener. The plants take in more minerals, and the product can be stored for more extended periods. This fertilizer hinders plants’ aging process and lets you grow to produce for longer. Your plants will also be immune to diseases and insect attacks.

Special Features
  • Made of highest quality Ascophyllum Nodosum seaweed
  • Improves seed germination
  • Fruits and vegetables have a longer storage life
  • Enhances production of chlorophyll

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4. Scotts Green Max Lawn Food

If your lawn is lifeless, and you wish to replenish it within a short duration, Scotts turf builder lawn food is best suited for you. Green Max fertilizer works as a catalyst for the new grass and gives you effective results within three days! The 5.17% iron in this compound provides a greenish hue to your lawn.

The grass grows faster due to the enormous amounts of nutrients available in it. This gives the green grass in your yard a new life. It can be applied on any grass in almost any season. Its unique formula doesn’t taint concrete surfaces. You can easily walk in your yard right after the application.

Special Features
  • Visible results within three days
  • Has a high amount of iron
  • Replenishes lawn faster than ever
  • Doesn’t leave stains on a concrete surface

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5. Simple Grow Solutions Micro Booster

Micro Booster is mostly recommended for people who like to grow flowers or fruits in their yard. Besides iron, this consists of zinc, manganese, magnesium, and sulfur.  

This means the plants gain more nutrition, and the fruits and vegetables are enriched with minerals. The grass and flowers retain a healthy color, and the products are of high quality.

Also, this specific micronutrient-based supplement boosts the plants’ immune system. Sod suffering from nutrient deficiency recovers faster. This fertilizer is specially formulated to be easily absorbed by the plants, right after application.

Moreover, this allows the rapid development of lawns and fruits and vegetables in your garden.

Special Features
  • Consists of several micronutrients
  • Fruits and vegetables are full of minerals
  • Corrects any nutrient deficiency in your lawn
  • Makes the grass absorb nutrients instantly

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6. Simple Lawn Solutions Phosphorus-free Fertilizer

Superior in nitrogen and potash, this specialized fertilizer is made up of bioactive ingredients. This phosphate-free supplement is most suitable for sandy soil. It’s completely organic and contains urea and Fulvic acids, which are ideal for your lawn’s immune system. 

It significantly enhances grass growth, simultaneously improving its color.
As it is only made up of natural ingredients, it doesn’t contain any hazardous chemicals that might damage your turf. If applied regularly, along with a fair bit of watering, the grass is sure to grow at a steady pace. 

It works effectively on any grass that keeps your lawn healthy and green as ever. Unlike other fertilizers, it significantly increases the heat and cold resistance of your garden.

Special Features
  • Contains urea and Fulvic acids
  • Best for sandy soil
  • Makes lawn resistant to heat and cold
  • Fully natural without harsh chemicals

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7. Safer Brand Ringer Lawn Restore

Lawn Restore is one of the best slow-release nitrogen fertilizer. If you are troubled by the thinning lawn, you should try using this product. With only three applications per year, this revitalizes the turf efficiently. 

It’s suitable for all seasons and works all year round without needing extra lawn care. Just spread it across your yard and let your soil soak in the required nutrients.

This supplement revitalizes your soil by providing the microorganisms with nutrients, which help with grass growth. These microorganisms are crucial for the grass to absorb the nutrients. Lawn restore reduces the chances of diseases in your lawn and being damaged by pests.

Special Features
  • Provides nutrients all year round
  • Enriches both the grass and the lawn
  • Increases productivity of necessary microscopic organisms
  • Protects the grass from pests and diseases

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8. Simple Lawn Solutions Lawn Energizer

The following is a nitrogen lawn fertilizer which is specialized in boosting grass nutrient levels to its peak. It contains a balanced blend of iron and intensified nitrogen along with several chelated micronutrients.

This includes all the vitamins necessary for a healthy lawn. It helps the grass retain its color throughout all seasons.

Made up of organic ingredients, it makes it safe for kids and pets, to tread on the grass after use. It’s highly compatible with a wide range of grass types and shows equally overwhelming results on any lawn. Fitted with a ready-to-apply hose-end sprayer, it can easily be used over 3200 square feet of grass.

Special Features
  • Boosts grass nutrients to optimum levels
  • Offers long-lasting color
  • Compatible for several grass types
  • People and animal-friendly

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9. Turf Perk Microbe Lawn Treatment

Unlike other fertilizers, Turf Perk can treat up to 5000 sq ft of lawn using microbes. Millions of microbes rejuvenate the soil with nitrogen and other essential nutrient and help the soil retain its moisture. 

This encourages strong root growth and increases the endurance of your lawn. The microbes work to its fullest extent to nurture your yard back to life.

When the fertilizer is applied, the microbes motivate the production of essential nutrients within the plants and soil themselves. Apart from all kinds of grass, Microbe Lawn Treatment is a perfect catalyst for flower, fruit, and vegetable gardens. 100% of natural ingredients make this fertilizer unable to burn the turf.

Special Features
  • Can cover up to 5000 square feet
  • Uses microbes to replenish grass and soil
  • Nutrients are produced within the plants constantly
  • Doesn’t contaminate groundwater

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10. Urea Nitrogen Fertilizer

Urea is the best nitrogen fertilizer out there. About 45% of urea is nitrogen. As we know, nitrogen is critical for vegetative growth. This means that a simple application of this fertilizer will escalate grass growth profoundly. 

It will show even better results when applied to garden areas, increasing the yield of produce. It systematically enriches the soil with all the required elements for plant growth and stimulates them to absorb the nutrients.

This makes the grass and plants grow with ease, giving them a vivid color. Moreover, urea doesn’t contain any harmful by-products. Thus, it’s very environment-friendly. Resources required for its manufacture can easily be obtained. Therefore, it’s cheaper. It stays in the soil over a long period.

Special Features
  • Contains an abundance of nitrogen
  • Long-Lasting effects
  • Cheap and easily manufactured
  • Doesn’t have polluting by-products

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Factors Need to Consider While Choosing the Best Nitrogen Fertilizer for Lawns:

All kinds of grass require certain elements for proper growth – nitrogen, phosphorus, potassium, and water. Most of the fertilizers in this article consist of one or all of these elements. But, before you choose a particular supplement, there are certain things you need to consider first.

Initially, you need to determine the type of grass in your yard. Different grass types require different levels of water, and not all grass fertilizers need the same kind of maintenance. Also, every kind of soil is suitable for a particular kind of fertilizer.

Make sure you check your soil’s pH level and any visible symptoms of nutrient deficiency on the grass. This will let you know the type of nutrients they are lacking, so pick your fertilizer accordingly.

There are also separate seasons for specific types of grass to be fertilized, and each has its application process. Application processes vary for each product, as well. Establishing what kind of grass, you have will help you finalize the proper application method. 

Another major factor is the N-P-K ratio of the supplement. Each of these ratios is mentioned in the product as a series of numbers (21-8-14). Your lawn might demand a particular nutrient more than the other, so resolve that first.

Also, learn the difference between organic and chemical fertilizers and their respective characteristics. Chemical fertilizers give faster results, whereas organic ones will not emit harmful by-products. Each has its pros and cons.

How to Use Your Nitrogen Fertilizer to Get the Best Result for Lawn?

We might have acquired vast knowledge about nitrogen fertilizers, but you should also know certain tricks to utilize them to the fullest. The efficiency of nitrogen fertilizers mostly depends on the weather and soil conditions. 

Always apply nitrogen-based supplements below above freezing temperature and above 100 degrees Fahrenheit. An alternative way to help the soil soak it in properly is to spray it as a liquid. This mixes with the grass more profusely and enhances its color and quality.

The soil consists of various microorganisms that enrich your lawn with nutrients. It’s recommended to use organic fertilizers as they stimulate these organisms, rejuvenating the grass with more nutrients.

Organic products continue this process over long durations, and can often work for years if applied as instructed. It also maintains the pH levels of the soil, keeping it more fertile over time. 

If you wish for fast results at a low expense, you might resort to fast release supplements. Most professional lawn care companies use liquid fertilizer spray to get a good result. This will give your lawn a vivid color almost instantly. It’s suggested to apply them repeatedly for a healthy and thriving lawn. The effects tend to wear off fast, so keep applying sporadically.

Although, relentless applications of fertilizer might burn the turf, so keep the amount uniformly balanced.

Frequently Asked Question

1. Can I store unused fertilizer for more than a year?

Yes, considering you have stored the bag safely in a dry area. If water gets into it somehow, it will create lumps and might lose its effectiveness.

2. How many fertilizer applications do I need each year?

If you are applying fertilizers with slow-release nitrogen, you only need to use it two or three times per year. The effects would be long term, so it doesn’t require much attention.

However, this also depends on the type of grass in your yard and the product you choose. Slow-release fertilizer applications are usually seasonal, whereas fast release applications need to be more repetitive.

3. Is it ok to use fertilizer during hot summer months?

It mostly depends on the type of supplements you are using, as some tend to burn the turf during hot climates. If you are applying it on a cool-season grass on a hot sunny day, then it’s surely going to ruin your garden. You just need to find the best fertilizer for grass in summer, they there is nothing to worry about fertilizing them in summer.

On the other hand, it is recommended to apply them to warm-season grass as that is the most suitable climate for them.

4. How long should I wait after applying fertilizer to mow my lawn?

It’s safe to start mowing instantly after watering it down.

5. Do you have phosphate-free fertilizer that is environmentally friendly?

Yes, there are several fertilizers with 0% phosphate. We have also mentioned one in this article.

Numerous things need to be kept under consideration when you want to maintain a perfect lawn. We are hoping that this article has provided you with all the necessary information about nitrogen fertilizers, the most important lawn food you need.


Always remember to wear gloves and safety glasses when applying fertilizers. Restrict children from entering the yard during application. From the above, pick one of the best lawn fertilizer according to your need. Proceed with caution on your journey to achieving the perfect lawn!