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Organic Lawn Fertilizers

Best Organic Lawn Fertilizers

From leading brands and best sellers available on the web.
#1

Winner

O.M. Scott and Sons Natural Grass F

Scotts

25%OFF

O.M. Scott and Sons Natural Grass Food, Food for Lawns, Fertilizes for up to 10 Weeks, Covers up to 2,000 sq. ft., 12.72 lbs., 2-Pack

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#2
Sunday Green Machine Fertilizer, 42

SUNDAY

5%OFF

Sunday Green Machine Fertilizer, 42.3oz, 2 Pack - Liquid Lawn Fertilizer for Lush Growth - Includes Universal Sprayer Attachment - Covers Up to 10,000 Sq Ft - Easy Application in 15 Minutes or Less

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#3
Espoma Organic Annual Lawn Feeding

Espoma

Espoma Organic Annual Lawn Feeding Program. Long Lasting, Natural & Organic Fertilizers for All Lawns. Four Bag Annual Program Feeds up to 5,000 Sq. Ft.

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#4
The Andersons Lawnbox® Northern Org

The Andersons

The Andersons Lawnbox® Northern Organic Fertilizer Bundle | Full Season Organic Fertilizer Program | Covers up to 2,500 sq ft

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#5
Organic Plant Magic - Truly Organic

Organic Plant Magic

5%OFF

Organic Plant Magic - Truly Organic™ Slow Release Granular Lawn Fertilizer: Best Fertilizer for Grass, Bermuda, St. Augustine & Yard Care - Granules (20 Lb)

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Related Products

Up to 8% off

#6
O.M. Scott and Sons Natural Grass F

Scotts

34%OFF

O.M. Scott and Sons Natural Grass Food, Food for Lawns, Fertilizes for up to 10 Weeks, Covers up to 2,000 sq. ft., 12.72 lbs.

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#7
Espoma Organic Fall Winterizer 8-0-

Espoma

Espoma Organic Fall Winterizer 8-0-5 Natural & Organic Lawn Food. Long Lasting Organic Nitrogen & Potassium for a Winter Strong Lawn. 30 lb. Bag Covers up to 5,000 Sq. Ft.

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#8
Purely Organic Products Lawn Food 1

Purely Organic Products LLC

5%OFF

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

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#9
Dr. Earth Home Grown Organic Tomato

Dr. Earth

Dr. Earth Home Grown Organic Tomato, Vegetable & Herb Fertilizer - 4lb

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#10
Safer Brand 9335SR Lawn Restore Nat

Safer

7%OFF

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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Buying Guide for the Best Organic Lawn Fertilizers

Choosing the right organic lawn fertilizer is essential for maintaining a healthy and vibrant lawn without the use of synthetic chemicals. Organic fertilizers are made from natural materials and are environmentally friendly, promoting soil health and sustainability. When selecting an organic lawn fertilizer, it's important to understand the key specifications and how they align with your lawn's needs. Here are the key specs to consider and how to navigate them to find the best fit for your lawn.
N-P-K RatioThe N-P-K ratio represents the percentages of nitrogen (N), phosphorus (P), and potassium (K) in the fertilizer. Nitrogen promotes lush, green growth; phosphorus supports root development; and potassium enhances overall plant health and disease resistance. For a new lawn, a higher phosphorus content (e.g., 10-20-10) is beneficial for root establishment. For established lawns, a balanced ratio (e.g., 10-10-10) or one higher in nitrogen (e.g., 20-5-10) is ideal for promoting green growth. Choose a ratio based on your lawn's current condition and growth stage.
Source of NutrientsOrganic fertilizers derive their nutrients from natural sources such as compost, manure, bone meal, and seaweed. These sources release nutrients slowly, providing a steady supply over time and improving soil structure. Compost and manure are excellent for overall soil health, while bone meal is high in phosphorus, and seaweed provides trace minerals. Consider the specific needs of your lawn and choose a fertilizer with nutrient sources that address those needs.
Application MethodOrganic fertilizers come in various forms, including granular, liquid, and pellet. Granular fertilizers are easy to apply and provide a slow release of nutrients. Liquid fertilizers offer quick absorption and are ideal for immediate nutrient needs. Pellet fertilizers are convenient for even distribution and long-term feeding. Choose the application method that best fits your lawn care routine and the specific needs of your lawn.
Soil pH CompatibilityThe effectiveness of a fertilizer can be influenced by the soil's pH level. Most grasses thrive in slightly acidic to neutral pH (6.0-7.0). Some organic fertilizers can help adjust soil pH, such as lime for raising pH or sulfur for lowering it. Test your soil's pH before selecting a fertilizer to ensure compatibility and optimal nutrient uptake. Choose a fertilizer that either matches your soil's pH or helps adjust it to the desired range.
Nutrient Release RateOrganic fertilizers release nutrients at different rates, from slow to fast. Slow-release fertilizers provide a steady supply of nutrients over an extended period, reducing the need for frequent applications. Fast-release fertilizers offer immediate nutrient availability but may require more frequent applications. Consider your lawn's growth cycle and maintenance schedule when choosing the nutrient release rate. For consistent growth and less frequent feeding, opt for slow-release fertilizers.
Environmental ImpactOne of the main benefits of organic fertilizers is their positive impact on the environment. They reduce the risk of chemical runoff, improve soil health, and support beneficial microorganisms. When selecting an organic fertilizer, consider its environmental certifications and the sustainability of its ingredients. Choose products that are certified organic and made from renewable resources to ensure minimal environmental impact.