There are loads of products out there promising a healthy, green lawn, but most of them are packed full of harmful chemicals. If your approach to gardening is the organic one and you’re looking to provide your lawn with a natural boost, there are loads of options out there to try.
Does organic fertilizer really work? From the perspective of the grass, using an organic fertilizer is just as effective as a non-organic one, but for the owner of the grass, it delivers better peace of mind.
These fertilizers can still give you a lush lawn but without any nasty ingredients scattered around your home, so they’re safe and successful.
Using an organic grass fertilizer gives you the usual benefits of fertilization without any of the harmful chemicals, and for many people, it’s the only approach they trust.
If you want to give these natural ingredients a go, we’ve hand-picked our favorite organic lawn fertilizers for you to consider.
Our Expert Picks for Best Organic Lawn Fertilizer
If you’re ready to give up the synthetic fertilizers and focus on natural and organic products only, we’ve got the only products you need to know about.
Our hand-picked favorites in both dry and liquid fertilizers will show you what’s possible with organic lawn fertilizer and what the best of the best looks like.
Best Overall: Espoma Fall Winterizer Organic Lawn Food
The key ingredients in this slow release fertilizer are sulfate of potash, as well as feather meal and manure from poultry, all packaged in a massive 30lbs container that’s capable of covering 5,000 square feet of grass.
If your goal is to prepare for your lawn for winter and provide it with an early spring greening, the Espoma Fall Winterizer Organic Lawn Food is the best way to do it.
This 30lbs container of organic fertilizer contains manure and father meal from poultry, as well as sulfate of potash, and all taken from organic sources.
The Fall Winterizer fertilizer features an 8-0-6 formulation which makes it perfect for winter, so those looking for a general purpose greening or strengthening fertilizer will want to look around.
With double the amount of nitrogen that other fertilizers have, it gives a powerful boost to your grass. The results from this are long lasting as well, with many people finding just once a year is all they need to get healthy and luscious grass.
An average container of Espoma’s organic fertilizer will get around 5,000 square feet of coverage, but it does require some work to spread it.
It’s suitable for all grass types and homes with pets and children, thanks to the all organic ingredients that make it gentle and natural. If you want the most potent organic fertilizer around, Fall Winterizer from Espoma is our favorite pick.
- Ingredients: Potash, manure, feather meal
- Dimensions: 30lbs
- Grass Types: All
- Usage (Area): 5,000 square feet
Runner-Up: Scott’s Natural Lawn Food
This is an all purpose fertilizer that suits any grass type, can be applied any season, and works at any stage of growth, including before sodding, and it’s safe enough for use around pets and children.
For those happy to patiently wait, a slow release organic fertilizer like Scott’s Natural Lawn Food will turn your grass into the most luscious and healthy it’s ever been.
Although you won’t see results immediately, when you do they’ll last for a long time, and you can apply this fertilizer in any season for just as much effectiveness.
Scott’s Natural Lawn Fertilizer works on all grass types, even sensitive ones, and it also works at any stage your grass is at, including before and after sodding.
A single bag of this fertilizer will cover 4,000 square feet of grass, so it’s one of the better options in this regard, and Scott’s recommends using one of their broadcasters to get an even spread.
Although an OMRI listed fertilizer, not all of the products within this product are organic but a majority are.
This is worth knowing if you only want to choose a 100% organic alternative, even though Scott’s Natural Lawn Food is safe for use around children and animals, and there’s no wait time before you can enjoy your lawn again after applying it.
For the healthiest and most luscious grass you’ve ever had, you can put your trust in Scott’s to deliver.
- Dimensions: 29lbs
- Grass Types: All
- Usage (Area): 4,000 square feet
Alternative: Milorganite Organic Nitrogen Fertilizer
As a slow release solution, it takes time to get results, but will also reduce cutting and watering time once it gets to work. The 32lbs bag covers around 2,500 square feet of lawn and it suits all grass types, so anyone can benefit.
Milorganite’s Organic Nitrogen Fertilizer is one of the world’s most renowned grass fertilizers and it’s made with a 100% organic composition.
The key ingredients of iron and a high nitrogen count mean you’ll get an amazingly green and luscious lawn after just one application of the fertilizer, and it’s been used for decades on golf courses to keep the perfect grass.
One of the best things about this organic fertilizer for lawns is that it actually cuts mowing time down, and has to be watered less.
Both of these mean a low-maintenance yard that looks better than it ever has before, as long as you’re prepared to pay the premium price attached to this natural alternative.
Some people were concerned to find that sewage sludge was an ingredient of this fertilizer, but it’s a common one in organic alternatives like this, so if you can look past it, the results will speak for themselves.
As a slow release formula, the 36lb bag of fertilizer takes a little time to see results, but it’ll amaze you when it does.
With a 6-4-0 composition and higher content of nitrogen than others, it’s one of the best things you can do for your lawn.
The Milorganite Organic Nitrogen Fertilizer is a favorite of ours and a must for anyone looking to copy the golf course look but with minimal effort.
- Ingredients: Iron, nitrogen, phosphorus
- Dimensions: 32lbs
- Grass Types: All
- Usage (Area): 2500 square feet
Alternative: Wiggle Worm Soil Builder
This fertilizer comes in a 15lbs bag and can be used on your grass, gardens, greenhouses, and indoor plants for a multipurpose approach, targeting the health of the soil underneath.
There are no synthetic or chemical ingredients and it suits all grass types and seasons, so you can use it with total peace of mind.
Soil Builder from Wiggle Worm is a soil-boosting fertilizer and one of our favorites when it comes to improving the state of your lawn.
As the name suggests, this fertilizer is made exclusively of worm castings and is one of the only products that can stand by its claim of being all natural.
Unlike other fertilizers, there’s no nasty smell when you lay this, so you never have to give it a second thought.
There are loads of benefits that worm castings offer your lawn, including better soil aeration, healthier growing conditions, and an all-natural approach that you can feel good about using.
Better still, there’s no need to fear your dog accidentally eating some or your kids playing on the lawn after it’s been spread, so it’s one of the safest and most natural options around.
Wiggle Worm’s Soil Builder does have some downsides, like the higher cost and the smaller bag size of 15lbs. however, you can decide how much you want to use and let the results speak for themselves.
If you want something made in the earth that will get to work improving the growing conditions of your grass, there’s nothing better than Wiggle Worm.
- Ingredients: Worm castings
- Dimensions: 15lbs
- Grass Types: All
- Usage (Area): NA
Best Liquid Fertlizer: True Organic Liquid Lawn Food
The 4-0-1 formula is packaged in a 32oz spray bottle which covers up to 2,000 square feet of grass, and it works at replenishing the soil underneath as well as supporting root growth and starting new grass seed.
If you prefer the ease and minimal mess of liquid fertilizer, True Organic’s Liquid Lawn Food is one of the best in this category.
The 32oz bottle might be one of the more expensive options as it only covers around 2,000 square feet in one package, but the results are instantaneous and it works underneath the ground as well as the grass on top, giving a complete transformation to your lawn.
There are loads of good, organic ingredients in this liquid fertilizer, including sugar molasses, potash, kelp, soy protein hydrolysate, and fish soluble.
Understandably, it’s one of the worst smelling fertilizers as well, so you’ll want to give it at least a week before the odor starts to dissipate.
Some people found the stench worth it when they saw how previously dead patches of grass started to come to life, and sometimes in just days.
True Organic’s Liquid Lawn Food uses a 4-0-1 formula that greens your lawn immediately, and it features only farm grade and organic ingredients.
You will feel total peace of mind knowing this has been applied to your grass and you can step onto it right away without having to worry about chemicals.
True Organic recommends monthly application to keep your lawn in good shape, but the extra effort will be worth it once you see results.
- Ingredients: Kelp, potash, soy protein hydrolysate, fish soluble
- Dimensions: 32oz
- Grass Types: All
- Usage (Area): 2,000 square feet
Organic Lawn Fertilizer FAQs
The key to healthy soil and vibrant grass is a good fertilizer, and thankfully, organic options have come a long way from where they used to be.
If you still want to learn more about this natural alternative for your lawn, read on for a few FAQS that will help.
Can You Have A Nice Lawn Without Chemicals?
Yes, it is possible to use natural and organic fertilizers that don’t contain harsh chemicals when treating your lawn.
A regular application of natural fertilizer plus ongoing mowing, weeding, and seeding are all possible without having to use any chemicals.
Is Organic Fertilizer Better For Lawns?
Most experts believe that organic fertilizers and those that include synthetic ingredients are just as effective at helping the grass.
The main difference is that an organic fertilizer poses no risk to the occupants of the property or the wildlife and insects that inhabit it, which is why many choose this natural approach.
When Should I Apply An Organic Fertilizer To My Lawn?
Autumn and early spring are the best times to apply fertilizer to your lawn, and some people do another application during winter.
However, for the most accurate application, you should consult the recommendations by the manufacturer that come with the specific fertilizer that you’re using.
What Are The Disadvantages Of Using Organic Fertilizers?
Some of the most common disadvantages of organic fertilizers are that they’re expensive and lower in key nutrients, but it depends on the product and formula.
There are shortcomings to every type of fertilizer though, so before you choose a product make sure you’ve researched its pros and cons.
An Organic Gardening Staple
Anyone interested in organic gardening would do well to start with organic lawn fertilizer, giving them a chance to see what these all natural products are all about.
If you’re ready to make the switch to this gentler style of gardening, our recommendations cover the best of the best in this market, so choose the one that best suits your lawn’s needs.