Best Organic Fertilizer for Lawn: Reviews, Buying Guide, and FAQs in 2021

by Izaz Ahmad

If you need a more luscious, greener lawn with fewer weeds, the finest organic lawn fertilizer will help. Such items are manufactured from all-natural components and do not produce harmful compounds, but they can potentially deliver outstanding results.

To provide the grass with critical nutrients, organic lawn fertilizers use only eco-friendly chemicals. Particularly natural sources of nitrogen-an essential component for optimal green grass growth-should be included in the best fertilizers for natural lawns. Organic grass fertilizers increase the quality of the soil and boost turf grass roots, resulting in lush, grass fields.

Most of the popular organic lawn fertilizers are made entirely of plant-based nutrition and do not comprise any animal byproducts. This form of organic lawn feed ensures that kids and animals can safely play on the grass. Additionally, utilizing solely natural lawn fertilizers reduces pollution and promotes a sustainable, organic landscape.

Mowing, irrigation, and nutrient uptake are all important aspects of creating a luscious, healthy lawn. It's as fundamental as maintaining the blade sharpened and choosing the right height when mowing. Irrigation is similarly simple once you grasp the basics of depth, infrequently watering. Plants nutrition, on the other hand, can be a little confusing. Although the fundamentals of what causes plants to grow are consistent from lawn to lawn, variables such as acidic soils, grass types, and period of year need to have a more nuanced fertilizer approach.

There are numerous important organic fertilizers available. Choosing the right one allows you to understand how they work and what type of affects you may expect.

Organic lawn fertilizers are growing more prominent as they become more commonplace, with more householders realizing the advantages of using natural products to nourish their grass. You might well be amazed by the number of options available at any respectable garden and equipment store; nevertheless, which natural lawn fertilizer did you choose? To assist you in determining which lawn fertilizer best matches your needs, we've researched some of the most popular organic lawn fertilizers now on the market.

Top 9 Best Organic Lawn Fertilizer

Top 9 Best Organic Lawn Fertilizer
Top 9 Best Organic Lawn Fertilizer

1. The Andersons 7-1-2 Innova Premium Organic Fertilizer - Link

The Andersons 7-1-2 Innova Premium Organic Fertilizer - Safe for Kids & Pets 5,600 sq ft (40 lbs)
The Andersons 7-1-2 Innova Premium Organic Fertilizer - Safe for Kids & Pets 5,600 sq ft (40 lbs)

This kind of Andersons' organic fertilizer is made entirely of plant matter, with no animal parts, composted waste, bio solids, or manure.

It's a soybean-specific solution that includes all of the essential vitamins and nutrients that your plants need to grow, such as nitrogen, potassium, and phosphorus.

Innova Fertilizer furthermore contains a significant level of amino acids and even a long-acting nitrogen source, which promotes healthy soils by providing support to beneficial bacteria. The ratio of carbon to nitrogen i.e. 6:1, in your lawn, offers the ideal environment for these bacteria and rich soil.

One of the most appealing features of this medication is that it is both safe and easy to use. Traditional methods make adding the homogeneous; low-dust granules make the application process simple. It's good for kids and pets, along with rivers, marshes, and other eco-friendly bodies of water.

This 40-pound bag flies down the fairway. To keep your lawn alive, you'll need anywhere from 3.5 to 11 pounds of Innova per 1000 sq. feet. In preparing the seedbed for effective achievement, use 20 pounds per 1000 sq. ft. for a new turf.

2. Safer Brand 9334 Lawn Restore Fertilizer - Link

Safer Brand 9334 Lawn Restore Fertilizer - 25 lb
Safer Brand 9334 Lawn Restore Fertilizer - 25 lb

Safer Brand is yet another wonderful sustainable option that relies on plant-based nutrition. There are no manures, bio-solids, or food litter and there is no odor in it as well. The product can works in a very short amount of time. Benefits can be seen in as short as 3 to 5 days.

If you have got a damaged lawn that already has grown itself up, this is a great solution. The lawn replenishes solution is designed to work effectively by keeping a healthy nutritional balance in your soils, feeding the bacteria and fungus that live there, and supplying the nutrients your grass needs to thrive.

Bermuda grass, Perennial Ryegrass, and Kentucky bluegrass are among the dry as well as cool-season grasslands that can benefit from this fertilizer. It can help to prevent weed spread by thickening your lawn and reducing the opportunity for weeds to thrive.

This 5,000-square-foot and 25-pound bag could be used for a moveable spreader or pushcart roughly every 8 weeks. For better results, submit one of these in the morning, one in the middle of the summer, and one in the fall.

3. Espoma EOLB30 Organic Lawn Booster Fertilizer - Link

Espoma EOLB30 Organic Lawn Booster Fertilizer, 30-Pound
Espoma EOLB30 Organic Lawn Booster Fertilizer, 30-Pound

Espome Spring Lawn Booster is a chemical-free organic fertilizer consisting of feather feed, pasteurized form of chicken manure, and also gypsum which is specifically developed to enhance the safety of your lawn.

The main features of this product as compared to other fertilizers, is that it releases nitrogen 2.5 times slower. This aids in the promotion of more uniform kind of production.

A 30-pound bag may extend up to 5,000 feet and is safe for pets and toddlers. It's designed to be planted in the springtime when the lawn is still newly mowed and therefore can approach the soil more effectively.

This fertilizer works best with a down or scattered spreader. If there isn't going to be any rain in the following 24 hours, this should be sprayed lightly which will further moisten the soil and improved results.

4. Milorganite 0636 Organic Nitrogen Fertilizer - Link

This Milorganite organic fertilizer is a gentle product that is ideal for both your lawn and other types of plants. It also helps trees, floral plants and shrubs to grow well. It works for up to ten weeks with slow-release method as well as non-burning nitrogen.

There are a few benefits to using the slow-release approach. You'll not only have to wait even longer for applications, but you'll also have to mow and save water. The method has proven to be so effective that it's been utilized by the golf courses for decades.

2,500 sq. ft. will be covered by this 36-pound bag. Simply distribute the granules equally throughout the planting season to produce lush, strong growth. Furthermore, because this treatment contains 4% water-soluble iron, the lawn should become greener more than ever.

Furthermore, because this solution doesn't include salts, it is safer to use in the dry situations and will not harm groundwater as well as wells when water shortages are in effect.

5. Dr. Earth Super Natural Lawn 9-0-5 Fertilizer - Link

Dr. Earth Super Natural Lawn 9-0-5 Fertilizer, 18 lb
Dr. Earth Super Natural Lawn 9-0-5 Fertilizer, 18 lb

This Dr. Earth organic fertilizer, which has a better pairing of seaweed extract, fishmeal, alfalfa meal, fishbone meal, potassium sulfate and other ingredients, comes next. This is not only a great alternative for your lawn, but it's also great for growing shrubs and trees in your yard.

One of the things this fertilizer can do is manage thatch, which is one of the reasons it is so effective. Thatch is basically a coating of detritus created by the grassroots. It is found in the space between the soil and also plants. Fertilizer will enter deeply into your grass once withdrawn, assisting in the development of a strong root system.

It also comprises three different stains on mycorrhizae, as well as several helpful bacteria onto the surface. Such species aid in ensuring that fertilizer reaches the soil properly and at an adequate, consistent rate.

Dr. Earth improves the soil's consistency while providing quick results. Also, one application can last up to 3 months, and you don't have to reapply very often.

6. Scotts Natural Lawn Food - Link

Scotts is a very popular company of fertilizers and their organic lawn feeding is an excellent way to achieve a luscious, greenish lawn without using harsh chemicals. It can be added to any type of grass at any time of year, resulting in a healthier, more naturalistic lawn.

With the help of a pushcart, you can apply quickly and evenly. Although watering isn't required, you should do so especially if the weather is dry and also no chance of rain is forecast soon.

After the transfer, you are free to just use your yard once more. Moving on again right away is beneficial, and you may allow your children and pets to enjoy there without an worry. For better results, reapply every 6 weeks.

Scotts frequently offers a no-questions-asked guarantee. If you are dissatisfied for any reason, you would have the option of getting your cash back. Simply provide them the receipt of your payment, and they will forward you a reimbursement request as fast as feasible.

7. Purely Organic Lawn Food - Link

Purely Organic Lawn Food
Purely Organic Lawn Food

The Completely Natural Lawn Stuff comes next. This brand has been used by big sports stadiums to keep their sports fields luscious and greenish for years. You'll have the very same feeling at school now that you're on your lawn.

If you prefer organic products, one feature of this type of fertilizer is that you will appreciate is that it is organic. Rather than allowing food waste to rot in landfills, Natural refines and blends it into powerful and affordable all-natural type of fertilizers.

It works by enriching your grass from within, providing additional nutrients to your yard. You can apply it as often as you want, and because it promotes thick, balanced growth, making your lawn is less likely to overtake by weeds.

The 25-pound bag is 5,000 square feet in size. The application is straightforward and reliable, and once completed, you have no restrictions till you can get back to the grass. There will be no trash, no foul odor, and it is warm and inviting to families.

8. Worm Castings Organic Fertilizer

This Unco Industries fertilizer is amongst the most unique on our checklist. Why? It is because it was produced from earthworm deposits. This is a fantastic solution for not only your grass, but also for floral plants, vegetables, and houseplants.

The night crawlers used to make this fertilizer were fed an organic diet rich in mineral elements. After the earthworms consume and transfer this material, the result is an extremely rich fertilizer that is packed with nutritional plants that require deep roots and fast growth.

This fertilizer is simple to use because the contents have already been processed by earthworms, making them suitable for plant usage. This formulation still contains everything your plants want for long-term nourishment, and it won't need reapplication as frequently to achieve long-term effectiveness.

15-pound sacks are included in this two-pack. A little amount of this type of fertilizer can work goes for a longer period like thirty pounds might last a long time.

9. Superior Nitrogen & Potash 15-0-15 NPK - Link

Superior Nitrogen & Potash 15-0-15 NPK- Lawn Food Quality Liquid Fertilizer - Concentrated Spray- Any Grass Type- Simple Lawn Solutions Green, Grow & Turf Hardiness- Phosphorus-Free (32 Ounce)
Superior Nitrogen & Potash 15-0-15 NPK- Lawn Food Quality Liquid Fertilizer - Concentrated Spray- Any Grass Type- Simple Lawn Solutions Green, Grow & Turf Hardiness- Phosphorus-Free (32 Ounce)

If you prefer liquid fertilizer, this recipe from the Products of Basic Lawn is a great option. It's ideal for basic maintenance, but it also works wonders on lawns with nitrogen as well as potassium deficiencies.

The major ingredients in this formula are nitrogen and potassium, as well as humic/fulvic acid. This mixture promotes growth and color along with giving the minerals necessary for healthy development.

This approach works well with all types of grass, including Bermuda, Bluegrass, Palmetto, and Zoysia. This 32-ounce container covers an area of 3200 square feet and is applied with a clear water hose that is properly linked to the container.

This product will not stress or destruct your grass because it contains no dangerous chemicals. It's a good suit for sandy soil, and it can even help with extreme temperature endurance. This product, which is prepared and supplied in the U. S., is safe for kids and livestock.

10. Natural Alternative Late Spring Lawn Fertilizer - Link

Natural Alternative Late Spring Lawn Fertilizer 19-0-3
Natural Alternative Late Spring Lawn Fertilizer 19-0-3

Lastly, this Safe Alternative Fertilizer is recommended. It's a phosphorus-free solution that's also all-organic and herbal. This product nourishes your garden with rich microorganisms and other substances that nourish the soil to develop a healthy, luscious lawn gradually over time.

Because it contains no phosphorus, this 20-pound bottle covers nearly 6,000 square feet as well as is a wonderful choice for nearby waterways, streams, and other water bodies.

The process of application is simple and employs a regulated spreader to achieve consistent distribution. For established lawns, use 3 pounds per 1000 square feet. Before sowing a newly planted grass, make sure the fertilizer has been brushed into the ground.

Why Should I Fertilize My Garden Using Organic Fertilizer?

Organic fertilizer has numerous benefits for both you and your grass.

The fundamental advantage of employing organic soil is just that it adds organic matter and nutrients to the soil and, as a result, enhances nutrient exchange. There are countless microorganisms in the soil that are an important element of the ecosystem that enjoy eating organic fertilizer.

Once the soil is healthier, it retains moisture better and attracts a higher population density of earthworms. Earthworms are indeed the easiest and most effective way to organically improve drainage and aeration, and their excrement is rich in nutrients that plants like. During the planting season, spray organic fertilizers on lawns 2 or 3 times per year. You shouldn't need to fertilize as regularly because natural grass feed enhances the soil quality, structure, and health. To maintain lawn grass growing, apply organic fertilizers as the weather gets warmer up in the springtime, early summer and early fall.

Amongst the most compelling reasons to use an organic fertilizer is that it has a lengthy shelf-life. Because organic content lasts longer to degrade, these fertilizers might last for months in the soil, especially if there is rain or stormy weather.

Such fertilizers gently enrich the soil at a level that provides the grass with what it requires without over stimulating it. Grass grows evenly and slowly, so you wouldn't have to trim as often as you'd want.

Among the most significant advantages of using organic fertilizers is that they do not produce hazardous chemicals. Because you don't even have to worry about spills or difficult clean-ups, having a large number won't harm your lawn.

Those items are, of course, ideal for turf. They obtain all of the resources they need, with fewer shortages and stronger foundations. When the lawn's vegetation gets stronger, it's unlikely to be infested by insects, and weeds have a harder time sprouting.

Organic and Chemical Lawn Fertilizer: What's the Difference?

Natural creatures with high quantities of nitrogen, potassium, and other micronutrients are used in organic lawn fertilizers. Inorganic components are present in chemical lawn fertilizers, and the nutrients are created by synthetic methods. Because organic fertilizers were once live organisms-plants or animals-using them in planting replenishes the soil's nutrients.

Nitrogen (N), phosphorous (P), and potassium (K) are the key nutrients for all forms of fertilizers, organic and synthetic (K). These three nutrients are all in different ratios based on what the fertilizer is used for. Nitrogen and potassium are two essential minerals for grass growth that is healthful, green, and lively.

According to University of Illinois researchers, the majority of natural grass fertilizers come from animals or plants. Seaweed (kelp), alfalfa, and cottonseed meal are major sources of plant-based fertilizers. Bone meal, poultry manure, and feather meal are all good sources of nutrition when it concerns natural lawn fertilizers derived from animals.

Chemical fertilizers are generally the outcome of the petroleum sector, thus according to study. Synthetic fertilizers may yield quick results than organically grown fertilizers, but they pollute the environment. Useful microorganisms in the soil are frequently killed by these fertilizers, resulting in poor soil and growth quality.

Is Organic Fertilizer Better Than Synthetic Lawn Fertilizer?

Organic lawn fertilizers are beneficial both to the grass as well as the soil. Microorganisms in the soil are stimulated by natural fertilizers, which improve soil structure. Organic fertilizers are gentler than synthetic fertilizers, which cause a quick, rapid growth spurt. They also nourish turf grass bases more efficiently. Organic fertilizers produce longer-lasting results over synthetic fertilizers.

Organic lawn fertilizers provide the following advantages over synthetic chemical fertilizers:


  • Easy to use -you did not have to worry about over-fertilizing your grass with organic fertilizer or spillage.
  • Nutrients -All nutrients are organic and do not promote mineral salt buildup in turf grass soil, which can be hazardous.
  • Micro-nutrients -In addition to the three major nutrients (NPK), organic fertilizers, unlike synthetic fertilizers, also contain a slew of other nutrients that plants require.
  • Nutrient release rate -the nutrients in organic fertilizers gradually break down in the soil, supplying plants as they require them. Because of the gradual release of nutrients, fewer fertilizer applications are required.
  • Impacts on soil -Organic lawn fertilizers improve soil fertility and support a healthy environment in the soil.
  • Safety -Natural fertilizers are better for lawns because they don't damage the roots. Furthermore, when used to grass, organic lawn fertilizers offer no risk to humans or pets.
  • Environmentally friendly -Runoff and leaching onto adjacent water sources are negligible.


Organic Fertilizers Have Drawbacks

  • To see results take more time and effort.
  • There may be additional weeds.
  • Grub infestations may be more common in your grass.

Buying guide

What's the Finest Organic Lawn Fertilizer on the Market?

The Andersons Innova Organic Fertilizer is the best natural lawn fertilizer in our opinion. This type of fertilizer is made entirely of soybean seeds and provides phosphorus, potassium, and Nitrogen.

This formula employs a carbon-to-nitrogen ratio of 6:1 to create an optimal environment for the soil's healthy bacteria. Also, there are high quantities of amino acids plus nitrogen that are released slowly for long-term effects.

The implementation is quite easy to use. The low-dust granules are safe for kids and cattle to use near lakes, streams, ponds, and other bodies of water. A 40-pound bag can cover a large area that can be used on both new and old lawns.

Organic Lawn Fertilizer Types

There are normally three varieties of organic lawn fertilizer. Everyone has their unique makeup and adds a variety of mineral nutrients to the soil. The three types are as follows:

  • Plant-based

These types of fertilizers are not as long-lasting as the other sustainable options, but they're typically the finest way of preparing the ground. One of the key advantages of plant-based fertilizers is that they can be quite successful in keeping dry crops on the water.

Molasses-related, legumes, cotton meal, Alfalfa meal, and manure bases are also used in plant-related fertilizers.

  • Animal-based

Bone meal, blood meal, and manure are among the ingredients in these fertilizers. They add a load of nitrogen into the soil, therefore, are ideal for planting at the beginning of the season or when seeding the grass first.

  • Mineral-based

Natural mineral-based fertilizers, such as calcium or Epsom salts, can offer critical nutrients to soil while simultaneously raising the pH level.

This is occasionally necessary for optimal growth, and a nutrient-based natural fertilizer is an excellent way to do it.

Granular vs. liquid

Organic fertilizers, including liquid and granular, function in combination with the soil's natural bacteria. When bacterial and fungi devour the natural elements in the fertilizer, they discharge the micronutrients at a controlled rate and also in a form that is readily available for plants.

The rate at which organic fertilizers are consumed by the soil is the difference between liquid and dry organic fertilizers. Dry, granular formulations decompose slowly, providing the lawn for extended periods. Because of the small particle size and accessible moisture, liquid organic fertilizers function faster. If you need a quick dose of nutrients, liquid fertilizer is the way to go.

Ratio of NPK

Green tint and leafy development are aided by nitrogen (N). Phosphorus (P) promotes the growth of deep roots. Potassium (K) improves vigor and resilience to sickness. These three nutrients are the most important for lawns and crops to become green and lush. Nitrogen is a highly volatile element. The quantity not consumed by the lawn evaporates and must be replaced regularly. Because phosphorus and potassium are found in such huge volumes in the soil, they are not needed in such massive quantities. When contrasted to the levels of P and K in the mix, organic lawn fertilizer provides 2 to 3 times or over N.

On the fertilizer label, look for the ratio of NPK. It displays the proportion of the total mass of each component product contains, usually in the order N-P-K. For example, an item with a ratio of 11-2-2 comprises 11 percent nitrogen, 2% phosphorus, and 2% potassium. Other ingredients, as well as any supplementary nutrients, are included on the label.

Desired Outcome

Following a soil test, it's critical to consider the lawn's condition while choosing a fertilizer. Choose a fertilizer with a medium to a high quantity of N ( 10% or above) with little to no P and K in case the grass is vigorous, with dense leaves and a deep green hue. Apply fertilizer with a lesser N ratio and somewhat more K in late summer and fall, as the lawn enters the dormant season.

Even when all three key nutrients are present, the turf may seem yellow at times. It is a common iron insufficiency symptom. Pick a good lawn fertilizer with added iron for a richer green.

In many regions, phosphorus already is abundant in the soil, and it might be tightly controlled to avoid contamination.

Natural Lawn Care: Using the Organic Weed & Feed

You'll need to integrate two separate items for natural weed and feed: First organic fertilizer and the second is organic weed reducer. Corn gluten meal is a natural weed preventative measure for your grass that prevents weed growth from rooting once they germinate. An organic weed killer isn't the same as an herbicide. Thus, unless you have undesirable plants already in your yard, you'll need to use any of these organic weed killers to get rid of them.

To prevent foxtail, crabgrass, dandelions and other lawn weeds, use organic weed and feed treatments twice a year. Espoma CGP6, which is a Preventer of Organic Weed, is a sample of an organic weed preventer that inhibits new weeds from emerging. Before the weeds have grown, use the products of weed and feed. The optimal time for the application of natural weed control is in the springtime. To keep weeds at bay, use the following concepts as part of your natural lawn care:

Before spraying weed and feed, trim the grass of your lawn to a length of roughly 3" (7.5). Wait two days before applying the weed and feed mixture on dry grass. Make sure the application of natural weed and feed is according to the manufacturer's directions. Other organic lawn care procedures can be used to promote the health of the grass and decrease the number of undesired lawn weeds.

The following are some of the benefits of organic lawn care:

  • Lawns should only be watered when the upper few inches get dry, and they should be properly watered. Weed roots are shallower than grassroots, so keep that in mind. So, for organic lawns, letting the top layer of soil dry before watering infrequently but thoroughly is good weed prevention advice. Before spraying water, wait till the top 6" (15 cm) turf is completely dry.
  • To feed your grass, just use high-quality, natural lawn fertilizers.
  • Every 2 - 3 years, check the soil pH level to ensure it's about 6.5. The optimal growth condition for grass is to keep the lawn moderately acidic. Weeds also grow in soil with a pH of 7.5 or higher.
  • The lawn should be aerated. Aeration aids in the removal of thatch improves drainage and allows the root bases to "breathe" extra oxygen.


Is it safe to use organic lawn fertilizers?

As long as conventional and organic fertilizers are used appropriately, they are safe for the lawns as well as the environment. Because the process by which plants absorb the nutrients is the same regardless of whether they originate from organic or inorganic fertilizer, it makes no difference to the grasses which kind of fertilizer is used.

When is the best time to fertilize my lawn?

When your lawn starts to turn green and actively grow, you must apply lawn fertilizer during February and April, according to Scotts. If your lawn appears to be prepared for its first cutting of the season, it's time to apply lawn fertilizer.

Is it possible to use too much organic fertilizer on your lawn?

Overfeeding the lawns or gardens is the most typical blunder. Fertilizer used in excess is harmful to both plants as well as the environment. Too much fertilizer can damage the roots of a plant, making it more susceptible to insects and illnesses. Even organic fertilizers like compost can be used excessively.

What if my lawn becomes wet due to rain after I fertilize it?

However, heavy rain soon after fertilization may cause the fertilizer to flow off the topsoil or into the bottom layer, where it will be less beneficial to your plants. It's also not a good idea to apply fertilizer to damp grass a day after a heavy rainstorm, because fertilizers can attach to wet grass thus causing harm.

Is it safe to fertilize my grass in the summer?

In general, grass fertilizer should be avoided in warm temperatures. Over-fertilizing can cause your lawn the need to be mowed more frequently, and fertilizing at the incorrect time can cause irreversible harm. Watering and trimming when needed should be the mainstays of a summertime lawn care routine.

Is it possible to fertilize my lawn every two weeks?

Applying fertilizer every 2 weeks is not suggested to avoid over-fertilization. Fertilizing every two weeks or more will almost certainly result in lawn burn, unwanted grass growth, and dirty water, which can lead to hazardous algae growth.

Can I use a certain amount of organic lawn fertilizer?

Even though organics are usually designated as "non-burning," excess fertilizer is a pollutant. Follow the soil test results as well as the product's label directions.

How do I choose the right fertilizer for my lawn?

Purchase an over-the-counter soil testing kit or submit a soil sample to your town's Cooperative Extension Service for examination before purchasing fertilizer. Use the findings of the soils test to determine how much fertilizer to apply.

Is it too late in October to fertilize my lawn?

Fertilizing your lawn twice in the fall in late August and late October will keep it green for the remainder of the year. Nitrogen levels in Winter Survival should not be too high, as this might cause snow mold disease issues later in the winter and early spring.

In the summertime, how can I fertilize my lawn?

Water your grass a day or twice before the application of fertilizer to prepare it. When average temperatures are colder, apply fertilizer at the start or at the end of that day. Following the fertilizer application, give your lawn a vigorous soaking to assist the fertilizer to penetrate into the soil. But be careful not to overwater!


Using the best organic lawn fertilizer can work wonders for your lawn. These fertilizers act in a different way than chemical fertilizers, and they offer several benefits. To maintain the soil fertile, they require fewer treatments and work for extended amounts of time.

It's best to get your soil tested before choosing a fertilizer; however, The Andersons Innova Organic Fertilizer is our best pick. It's made entirely of plants and contains phosphorus, potassium, and nitrogen to enable the soil to thrive.

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