10 Best Organic Lawn Fertilizer of 2025

Tested and Reviewed: Top 10 Organic Lawn Fertilizer deals with expert ratings from 8.1 to a perfect 10

May 2025 Edition

Editor's Choice

9.7

Save 12%

Purely Organic Products LLC

Purely Organic Products Lawn Food 10-0-2, 15 LB Bag (Covers 3,000 Square Feet)

12% OffFree Shipping

Editor's bottom line:

“This organic lawn fertilizer is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Promotes Lush Green Turf Grass. Will Not Burn Your Lawn.
Plant Based Formula with Distillers Grains & Soy. No Harsh Chemicals, No Manure & No Smelly Biosolids.
Convenient, Family & Pet Friendly. No Restrictions on Re-Entry Time After Application.
10-0-2 Formula with No Phosphorus Meets Town & Municipality Regulations Restricting Phosphate Use.

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Picked by 162 people today

9.5

The Andersons

The Andersons HumiChar Organic Soil Amendment with Humic Acid and Biochar Covers 12,000 sq ft (12 lb)

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Main Highlights

HumiChar is an organic, carbon-based soil amendment containing 50% high-quality humic acid and 50% granulated biochar -- Provides the benefit of quickly-available humic acid and the long-term soil building qualities of the biochar that lasts for decades
Improve your soil health, lawn health, plant health, and reduce the use of fertilizers
Easy to apply spherical, uniform, low dust formulation --Dispersible Granule, or "DG" Technology is The Andersons' patented nutrient delivery system. With DG Technology, particles are more rapidly and efficiently broken down
Environmentally friendly, OMRI listed. User friendly; can be blended with fertilizers or used alone
Not for sale in California or Oregon

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9.5

Save 6%

Down To Earth All Natural Fertilizers

Down to Earth Organic Bio-Turf Lawn Fertilizer Mix 8-3-5, 4 lb

6% OffFree Shipping

Main Highlights

Down to Earth Bio-Turf is a 4 pound box of fertilizer with 8-3-5 formula and is listed by the Organic Materials Review Institute (OMRI) for use in organic production
Entirely natural granular lawn fertilizer designed to encourage deep root development to help reduce watering requirements
Nitrogen-rich formula boosts early season growth while its extra Potassium reduces seasonal stress due to temperature change and drought
Ideal for heavy feeding garden vegetables like corn, tomatoes and leafy greens
Derived from: Hydrolyzed Feather Meal, Blood Meal, Meat Meal, Bone Meal and Langbeinite

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9.2

Save 15%

Milorganite

Milorganite Recycled Lawn and Garden Nitrogen Fertilizer (Recycled Organic Material)

15% Off

Main Highlights

Milorganites low-salt formula protects plants from dehydration and stress, ensuring safe use across various conditions, even during peak heat.
Safe for a variety of settings, from backyard lawns to edible gardens, Milorganite nourishes roots and supports strong, stable plant growth.
Enriched with naturally occurring iron, Milorganite helps your lawn achieve a lasting, vibrant green without the risk of staining walkways or concrete.
Each application provides consistent nutrition for up to 10 weeks, extending time between feedings and fostering healthier soil.
Milorganites even-release formula prevents patchy, uneven growth, making it easy to achieve a full, lush look.

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9.0

Safer

Safer Brand 9335SR Lawn Restore Natural Lawn Fertilizer - Non-Burning Fertilizer - 9-0-2 NPK - Covers up to 5,000 Sq Ft

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Main Highlights

Enjoy A Lush Green Lawn - Revitalizes lawn to a thick turf by strengthening root systems
Works Fast - Lawns start to green up within 3 to 5 days of application
Non-Burning - The formula promotes soil vitality for a thicker, healthier lawn and is made from ingredients that will not burn your lawn or deprive the soil of nutrients
Helps Plants Withstand Stresses - Provides effective year-round care by helping plants withstand heat, cold and drought stresses
Naturally Derived Formula - When used as directed, your lawn is safe for your kids and pets to continue playing immediately after application
Large Coverage Area - Each bag offers up to 5,000 square feet of coverage and contains all the nutrients needed to bring your lawn back to life

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8.8

Jonathan Green

Jonathan Green Organic Organic 8-0-1 Lawn Food for All Grass Types 20 lb. 5000 sq. ft.

Main Highlights

FEEDS LAWNS FOR 8-10 WEEKS - This grass fertilizer has an analysis of 10-0-1 and is designed to promote lush green growth in lawns. It provides gradual, consistent nutrient release for 8 to 10 weeks.
PACKED WITH TURF NUTRIENTS - Our lawn fertilizer provides excellent turf nutrients that promote healthy grass growth. It contains iron for deep greening. Can be used on established lawns and newly seeded or sodded lawns.
CHILDREN & PET SAFE - Due to the absence of fast-release synthetic ingredients, our fertilizer won't burn the yard and kids and pets may use the lawn immediately after application. It also has no undesirable manures or sludge-based fertilizers.
EASY TO APPLY - The homogenous granules of this grass fertilizer are incredibly easy to spread. Our lawn food should be applied using a rotary, drop, or hand-held spreader.
COMPLETE COVERAGE - This 17 lb bag covers up to 5,000 sq. ft. The best time to apply is late spring, summer, or early fall.

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8.6

Espoma

Espoma Organic All Season Lawn Food 9-0-0 Natural & Organic Lawn Food; Fertilizer for All Lawns; Long Lasting Organic Nitrogen for a Greener Lawn. 28 lb. Bag Covers up to 5,000 Sq. Ft.

Main Highlights

CONTAINS: Espoma Organic Lawn Food is a rich blend of the finest natural & organic ingredients enhanced with our exclusive Bio-tone formula; 9-0-0 Fertilizer analysis. Adds Long Lasting Nitrogen for Deep Green Color. Environmentally Safe - No sludges or toxic ingredients.
FOR USE ON: Use for all lawns both cool and warm season grasses. Ideal for fescues, bluegrass, rye grass, St. Augustine and zoysia. Wont Burn Lawns or Leach Out of Soil
WHEN / HOW TO USE: Use both early & late spring and fall for all lawns. Apply with a drop or broadcast spreader.
FOR ORGANIC GARDENING: All Season Lawn Food is approved for organic gardening; It is a registered Organic Input Material meaning it meets all requirements for organic production.
MADE IN THE USA: Product of the Espoma Company. The leader in natural organics since 1929

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Best Value

8.3

Save 17%

Espoma

Espoma EOLB30 Organic Lawn Booster Fertilizer, 30-Pound

17% Off

Main Highlights

Made from Feather Meal, Pasteurized Poultry Manure & Gypsum
8-0-0 formulation 30lbs
Feeds up to 5,000 sq ft
Safe for kids and pets
Environmentally friendly

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Our Best Overall Choice

Best Choice

9.7

Purely Organic Products LLC

Purely Organic Products Lawn Food 10-0-2, 15 LB Bag (Covers 3,000 Square Feet)

12% OffFree Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Promotes Lush Green Turf Grass. Will Not Burn Your Lawn.
Plant Based Formula with Distillers Grains & Soy. No Harsh Chemicals, No Manure & No Smelly Biosolids.
Convenient, Family & Pet Friendly. No Restrictions on Re-Entry Time After Application.
10-0-2 Formula with No Phosphorus Meets Town & Municipality Regulations Restricting Phosphate Use.

Show Price

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