The Best Organic Fertilizers for Lawns


When many people think of fertilizer, the synthetic fertilizer type is the only type that comes to mind. You know, the chemical fertilizers packed with potentially harsh chemicals facilitate green grass, but possibly at the expense of the environment.

The good news is that you have options beyond this synthetic conventional lawn fertilizer when it comes to treating your lawn grass – and organic lawn fertilizer, including Milorganite Alternatives, just so happens to be one of them.

The organic lawn fertilizer product category has really exploded over the past few years as home and property owners have become more serious about environmentally friendly lawn care. In this post, we’ll take a closer look at everything you need to know about organic lawn fertilizer – from liquid fertilizer to chemical fertilizer – to help you get a lush lawn. We’ll also cover the best organic lawn fertilizer and what to look for as you plan out your organic lawn care program.

Here’s what you need to know:

The Basics of Organic Lawn Fertilizers

The purpose of any type of fertilizer is to feed your lawn to promote healthy grassroots and, ideally, control weed growth. It’s what any type of lawn fertilizer is meant to do, and an organic, natural lawn fertilizer is no exception.

The best organic lawn fertilizers use naturally occurring mineral deposits like bone meal, composted waste, food waste, and other types of organic matter to create control weeds and help facilitate a green lawn. Most organic lawn fertilizers also do a good job of stimulating soil microbes and helping the soil pH so that all the nutrients can aid in plant growth and help your flower beds as well.

What’s more, most organic fertilizers are slow-release, meaning they’ll feed your lawn for longer. As a result, the NPK, or Nitrogen, Phosphorus, Potassium makeup, of organic fertilizers is typically a bit lower than most synthetic fertilizers. But this isn’t necessarily a bad thing. It just means that organic tends to be a slow-release fertilizer that works harder for longer on your lawn.

Organic Fertilizers vs. Conventional Fertilizers: What You Need to Know

Like we noted in the previous section, the big difference between organic lawn fertilizer and conventional mixes is largely makeup. While slow-release organic fertilizer tends to be comprised of natural ingredients, synthetic fertilizers are created via manually processing raw materials.

But there are many more differences between organic and synthetic fertilizers, such as:

  • Organic fertilizers work to feed not just the plant and the grass, but the soil as well. In other words, organic fertilizers promote healthy soil and lush lawns. Just do a before and after soil test and see the difference for yourself. Conventional fertilizers tend to just feed the grass and plants.
  • Organic fertilizers won’t just help feed your lawn immediately, but they’re also safe for pets and children, and safe for the environment.
  • Unlike with conventional fertilizer, if you inadvertently over-apply organic lawn fertilizer, you’re likely not going to damage the lawn. When you use conventional fertilizers, failure to spread over the lawn evenly can lead to a burned lawn.
  • When you apply the best organic lawn fertilizer types, you’ll actually find that you have to apply less overall fertilizer because natural ingredients work harder for longer compared to synthetic chemicals.

In addition to the ability of organic fertilizer’s ability to help you maintain a green yard, it’s worth noting that you’re able to generally treat the same amount of square feet as you would with a bag of conventional fertilizer. You can purchase bags of natural fertilizer from your local garden center that can treat up to 5,000 square feet or more of cool-season grasses, bermudagrass, and more.

It’s even available in larger quantities for treating golf courses.

Best Organic Fertilizer for Lawn

So just what are some of the best organic lawn fertilizers? We’ve crunched the organic lawn fertilizer reviews to come up with this list. Here’s a look:

Jonathan Green 10-0-2

Our personal favorite. This organic mix is homogenous, easy to spread, and contains food-grade organics like feather meal, soybean meal, and blood meal. 

Espoma Organic Lawn Food

It’s no secret, we love Espoma. It’s environmentally friendly and child and pet friendly as well – and it will cover up to 5,000 square feet. It’s Espoma Organic Lawn Food, one of the top organic fertilizer brands for all seasons.

Anugreen 16-0-2 Fertilizer

Designed primarily for cool-season grasses, this season lawn food feeds for up to eight weeks and contains nitrogen, potash, sulfur, and iron.

Safer Brand Ringer Lawn Restore

This organic nitrogen fertilizer is designed to rejuvenate lawns by feeding the root system. It’s especially useful if you want to immediately green up your lawn after a long summer of wear and tear.

Innova 7-1-2

The Andersons is awesome. Their Innova 7-1-2 Organic Fertilizer is among the best. It contains amino acids that are designed to benefit plants, grass, and the soil.

Purely Organic Lawn Food

Looking for lawn food to help you get that green lawn? Look for Purely Organic Lawn Food. Comprised of soybean meal and other ingredients that help the root system and keep your lawn green, this high nitrogen lawn fertilizer feeds for up to eight weeks.

Milorganite Organic Lawn Fertilizer

Plant food that feeds for up to 10 weeks after application, this fertilizer is a great seasonal lawn food that won’t damage the lawn. Check out our Milorganite Alternatives.

Scotts Natural Lawn Food

It’s a season lawn food, but it’s all-natural. Scotts Natural Lawn Food is one of the best organic lawn fertilizer varieties thanks to its unique formula and long-lasting feeding ability.

Organic Nitrogen Fertilizer for a Healthy Lawn

Like we’ve said throughout this piece, one of the nice things about organic fertilizer compared to chemical fertilizers is that they feed for longer and help promote a green, more uniform-looking lawn. This means the time you spend on lawn care will decrease so that you can do other things, like enjoy your yard.

Organic Compost for a Greener Lawn

What is the best organic fertilizer for lawns?

There are brands that would fall into the best organic lawn fertilizer category, from pasteurized poultry manure to purely organic lawn food to other brands.

When should I apply an organic fertilizer to my lawn?

The best organic lawn fertilizer brands have different mixes for different times of the year. Suggested application is typically in the early spring, late spring, summer, and fall for best results.

Is organic lawn fertilizer safe?

Absolutely. Organic lawn fertilizer is safe for both the environment and for pets and children. In most cases, grass treated with organic lawn fertilizer can be immediately walked and played on the following application.

Can you put down too much organic fertilizer?

The nice thing about organic fertilizer is that if you do, it won’t damage your lawn or plants. This differs from the harsh chemicals included in conventional fertilizers that can burn your lawn if it is over-applied.

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