THE 10 BEST Milorganite Alternatives for 2022 (UPDATED)

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Written By: Mark Marino

a Massachusetts Core Applicator License holder and owner/operator of Lawn Phix,

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Milorganite is one of the best organic fertilizers on the market. The popular slow-release nitrogen formula, from Milwaukee, WI, now comes in a 32-pound bag and covers 2,500 square feet of lawn. This delivers 0.72 lbs. of nitrogen per 1,000 sq. ft. of turf.

It also contains the right amount of essential phosphorus, calcium, and iron to keep your lawn in great condition all year long. But with the high demand comes short supply and a hike in prices.

In fact, in both 2018 and 2019, Milorganite was in very short supply. This has caused many lawn care nuts across America to scramble for some last-minute Milorganite alternatives. Be sure to find some Milorganite substitutes early this year, just in case, and read the differences between Ironite and Milorganite.

Lawn Phix has an updated list of organic nitrogen fertilizer alternatives for 2021 organic lawn care plans. Some you’ll be able to find in your big box stores, others can be found online, and more uniquely we have broken out some Milorganite alternatives by State. You may be able to find these Milorganite alternatives at your local nurseries or even Water Resources Authority like Bay State Organic Fertilizer in Massachusetts.

The 10 Best Milorganite Alternatives

1. Yard Mastery 

Yard Mastery 16-0-0 Double Dark Granular Lawn Fertilizer

The Carbon Earth company, unfortunately, went out of business so removed the Carbon X (CX DIY) and the 8-1-8 and are updating this list for 2021 to include the new fertilizers from Yard Mastery The 16-0-0 Double Dark has more nitrogen than Milorganite but contains 6% iron for that deep green pop. Where these products really set themselves apart is the addition of Bio-Nite – a Milorganite clone, but biosolids sourced from Florida vs. Milwaukee. 

2. Innova 7-1-2


Innova 7-1-2 Organic Fertilizer by The Andersons is a plant-derived, all-natural soybean-based fertilizer. Innova is a 100% organic, OMRIlisted homogeneous granular fertilizer. Below are approximate rates based on a 40 lbs bag. The company recommends 3.5 lb. per 1,000.

3.5 lbs = 0.25 lbs N per 1,000 (11,400 sq. ft.)

7 lbs = 0.5 lbs N per 1,000 (5,700 sq. ft.)

11 lbs = 0.78 lbs N per 1,000 (3,600 sq. ft.)

3. Safer Brand Lawn Restore 10-0-6


Safer Brand Ringer Lawn Restore is a popular Milorganite alternative. It is a 10-0-6 Phosphorus free, plant-based granular fertilizer. Ringer is 0% Phosphate fertilizer is slow-release and non-burning.

This 25 lbs bag covers up to 5,000 sq. ft. and delivers 0.5 lbs. of Nitrogen per 1,000 sq. ft. of lawn area.

4. Purely Organic 10-0-2 Lawn Food


Purely Organic Lawn Food is very similar to Ringer Lawn Restore. It is an organic plant-based fertilizer, made with grains and soy, and contains no phosphorus. This 10-0-2 formula is sold in 25 lbs. bags and delivers 0.5 lbs. of Nitrogen per 1,000 sq. ft. of grass.

5. Jonathan Green 10-0-1 Organic Lawn Food


Another great substitute to Milorganite is one of Lawn Phix’s top picks, Jonathan Green 8-0-1 Organic Lawn Food. Their new formula is now a 10-0-1 blend of feather meal and soybean meal. The 17 lbs. bag covers 5,000 sq. ft. and 51 lbs. bag covers 15,000 sq. ft. and delivers 0.34 lbs. of Nitrogen per 1,000 sq. ft. of lawn.

6. Greenedge Slow Release 6-2-0


Next on the list of Milorganite alternatives is Greenedge Slow Release 6-2-0 Fertilizer. The N-P-K ratios are the closest to Milorganite and act as a bio-activator to increase microbial activity. The 40 lbs. bag covers 3,200 total sq. ft. while delivering 0.75 lbs. of slow-release organic nitrogen per 1,000 sq. ft. of turf.

7. Epsoma 8-0-0 Organic Lawn Booster


Number 7 on our list of top Milorganite substitute is Espoma Organic Lawn Food – Spring Lawn Booster Fertilizer. Epsoma 8-0-0

Spring Lawn Booster is made from feather meal, poultry manure, and gypsum. The 30 lbs. bag of organic fertilizer covers 5,000 sq. ft. and delivers 0.48 lbs. of Nitrogen per 1,000 sq. of. of grass.

Epsoma 9-0-0 All Season Lawn Food, like Jonathan Green, is derived from feather meal and poultry manure. comes in 14 lb. and 28 lb.

bags which cover 2,500 sq. ft. and 5,000 sq. ft. respectively while applying 0.5 lbs. of Nitrogen per 1,000 sq. ft.

8. Simple Lawn Solutions 6-0-0 Lawn Booster


Simple Lawn Solutions is a growing brand with some great liquid fertilizer options. This6-0-0  Lawn Booster nitrogen fertilizer also contains

5% iron to really make the lawn green-up. This quart container covers up to 3,200 in its convenient hose-end sprayer

9. LawnStar Green Up 12-0-0


Another popular liquid fertilizer brand is LawnStar. Like Simple Lawn Solutions, this Green Up Nutrient Blend comes mixed and ready to go in the hose-end sprayer. This quart is filled with 12-0-0 N-P-K, with 6% iron for a true “Green Up”. A great deal that covers up to 4,000 sq. ft.

10. LawnStar 16-4-8 Liquid Fertilizer


To finish up our top-10 list of Milorganite alternatives, LawnStar 16-4-8 Liquid Fertilizer acts more like a starter fertilizer but contains seaweed extract. This is a solid-liquid fertilizer with a perfect blend of the quick release and slow-release nitrogen. This quart also covers up to 4,000 sq. ft. 

Milorganite Alternatives at Home Depot:

Purely Organic 10-0-2

GreenEdge 6-2-0

Kellogg Garden Organics 4-4-4

And be sure to read below why you should choose an organic nitrogen fertilizer.

Milorganite Alternatives by State:

(Note: some of these may not be exact clones or biosolid fertilizer replicas, but an alternative nonetheless)


 Mighty Grown Living Organic Fertilizer 4-3-4

AgBlend Organic Fertilizer 3-3-3


OrganiCal (California Organic Fertilizers, Inc.) 7-1-2


 AlphaOne 14-2-2

Rich Lawn Organic 8-2-1


 Green Edge Slow Release 6-3-2

Sunniland All Natural Lawn Fertilizer 6-4-0


 Sustane All Natural Starter 4-6-4 4-3-0

Ideal EQ Natural Fertilizer 4-3-0


Ideal EQ Natural Fertilizer 4-3-0


 MightyGrow Living Organic Fertilizer 4-3-4

MicroLife All Organic Biological Fertilizer 6-2-4


Bloom 1.5-1.5-0


Bay State Fertilizer 4-3-0


Natural Lawn Fertilizer 4-3-0 (Mernards)


Sustane Plant Food 8-2-4


MightyGrow 4-3-4

New Jersey:

OceanGro 5-5-0


Ideal EQ Natural Fertilizer 4-3-0

South Carolina:

Poconite 5-2-0


 HOU-ACTINITEâ„¢ Activated Sewage Sludge 6-3-0

MicroLife All Organic Biological Fertilizer 6-2-4


SoundGRO® Fertilizer 5-5-0


MetroGro 8-4-1

Why Organic Fertilizers?

Milorganite is a popular organic fertilizer for many reasons. First off, it is slow-release nitrogen fertilizer. This allows you to apply nitrogen fertilizers less frequently, and the slow steady release provides nutrients for up to 10 weeks.

Organic fertilizers like Milorganite are also non-burning. This means it is safer to use during the summer months than synthetic fertilizers. The slow-release nitrogen also aids in the non-burning benefits.

These also provide a good source of iron. Iron, of course, is important to provide that deep dark green, picturesque grass that all lawn care addicts yearn for. And unlike liquid iron sulfate products, Milorganite will not stain concrete driveways, patios or walkways.

Lastly, and perhaps most importantly, Milorganite (and some of these alternatives fertilizers) contain a lot of organic matter which helps feed the soil. When the soil is nourished, it feeds and activates soil microbes.

Do you know of any other Milorganite alternatives in your area, or online? If so, please let everyone know by posting a comment below. 

Frequently Asked Milorganite Questions

What is Milorganite?

Milorganite is a popular organic fertilizer manufactured by the Milwaukee Metropolitan Sewerage District. It is slow-release nitrogen that contains iron and provides beneficial nutrients to your soil. Read Lawn Phix Why Organic Fertilizers section to learn more.

The Nitrogen-Phosphorus-Potassium (N-P-K) analysis is 6-4-0. A full bag rate application, as directed on the 32-pound bag (from their previous 36-pound bags) covers 2,500 square feet and delivers 0.77 pounds of nitrogen per 1,000 square feet.

When to use and apply Milorganite?

Depending on where you live and what your lawn care program consists of, but for cool-season lawns, you can use Milorganite as frequently as 4-6 times per year. For Massachusetts Zone 6 for example, Lawn Phix suggests five applications between May-September.

Can you use Milorganite with other Fertilizers?

Depending on how much Nitrogen you are looking to put down per application and per year, Milorganite is safe to use with other N-P-K fertilizers and supplements. For example, Lawn Phix suggests using Milorganite in conjunction with a starter fertilizer, lime, and Kelp4Less when overseeding in the fall. Use our Nitrogen Calculator to help calculate the amount of Nitrogen you’re applying.

Where can I buy Milorganite?

Milorganite can be found at some select Home Depot, Lowe’s, and Ace Hardware locations. You can also check your local nurseries, lawn and garden centers, and hardware stores. Milorganite can also be found on and other e-commerce websites. Sometimes Milorganite can be in short supply. You will want to look for some alternatives just in case you can’t find it, or need something cheaper within your budget.

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Author's Note: this piece has been updated for accuracy since its first publication on
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Author: Mark Marino
My name is Mark Marino, and I am the founder, owner, and operator of Lawn Phix. With a passion for lawn care and turf nutrition for over a decade, I've dedicated countless hours to correcting soil and perfecting lawns. Today, my expertise, backed by formal courses at UMass Extension Pesticide Education, allows me to offer top-tier lawn care services and advice. I am a fully licensed and insured lawn care applicator in Massachusetts, specializing in comprehensive turf nutrition, weed control, and lawn pest control. My license number is AL-0053865. Contact me at [email protected] or +1 (508) 500-8402.

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