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Patio, Lawn & Garden

Gardening & Lawn Care

Organic Grass Fertilizers

10 Best Organic Grass Fertilizers 2025 in the United States

Name: Scotts Turf Builder WinterGuard Fall Lawn Fertilizer for All Grass Types, 4,000 sq. ft., 10 lbs.
Brand: Scotts
Price: 22.99 USD
Availability: InStock

From leading brands and best sellers available on the web.

Humboldts Secret Set of A & B Liquid Hydroponics Fertilizer - World's Best Nutrient System – Hydroponic Nutrients for Outdoor, Indoor Plants – Supports Vegetative and Flowering Stages of Plants

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Winner

Scotts

Scotts Turf Builder WinterGuard Fall Lawn Fertilizer for All Grass Types, 4,000 sq. ft., 10 lbs.

9.8

score

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Humboldts Secret Set of A & B Liquid Hydroponics Fertilizer - World's Best Nutrient System – Hydroponic Nutrients for Outdoor, Indoor Plants – Supports Vegetative and Flowering Stages of Plants

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Scotts

Scotts Turf Builder Starter Fertilizer for New Grass, Use When Planting Seed, 5,000 sq. ft., 15 lbs.

9.6

score

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Scotts

Scotts Green Max Lawn Food, Lawn Fertilizer Plus Iron Supplement for Greener Grass, 5,000 sq. ft., 16.67 lbs.

9.4

score

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The Andersons

The Andersons PGF Balanced 10-10-10 Fertilizer with Micronutrients and 2% Iron (5,000 sq ft)

9.2

score

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Simple Lawn Solutions

Advanced 16-4-8 Balanced NPK - Lawn Food Quality Liquid Fertilizer - Spring & Summer Concentrated Spray - Any Grass Type - Simple Lawn Solutions (32 Ounce)

8.9

score

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Scotts

Scotts Turf Builder Lawn Food - Fertilizer for All Grass Types, 5,000 sq. ft., 12.5 lbs.

8.7

score

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Milorganite

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

8.4

score

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Simple Lawn Solutions

Ultimate 3-18-18 NPK- Lawn Food Quality Liquid Fertilizer- Easy to Use Concentrated Spray- Any Grass Type- Summer & Fall Nutrients- Simple Lawn Solutions - Turf Hardiness & Root Vigor (32 Ounce)

8.1

score

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Espoma

Espoma EOFW30 Organic Fall Fertilizer, 30-Pound

7.8

score

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#10

Safer

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

7.5

score

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More products we considered

GARDENERA Banana Tree Potting Soil - Professional Grade Mix for Growing Delicious Bananas - Enhanced with Essential Nutrients for Bountiful Harvests (3 Quart)

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Gardenera Premium Nutritional Plant Food Spray for Citron - Balanced Nutrition Plant Superfood | Excellent Growth Booster for Citron Trees - 8oz

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𝐏𝐑𝐎𝐅𝐄𝐒𝐒𝐈𝐎𝐍𝐀𝐋 Grade Organic Cal-Mag Plus Growing Fertilizer Concentrate: Calcium, Magnesium, Iron & Micronutrients Supplement for Plant Deficiencies (9-0-0 NPK) - 32oz Bottle (Quart)

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Gardenera Premium 𝐀𝐋𝐋-𝐏𝐔𝐑𝐏𝐎𝐒𝐄 𝟏𝟎-𝟏𝟎-𝟏𝟎 𝐋𝐢𝐪𝐮𝐢𝐝 𝐅𝐞𝐫𝐭𝐢𝐥𝐢𝐳𝐞𝐫 for Lawns, Plants, Vegetables, Fruits & Flowers, Liquid Plant Food 10-10-10 for Indoor/Outdoor Plants (32 OZ)

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Bud Doublin Micros - All Natural Bud Fertilizer with Humic and Fulvic Acid (1 Quart) - Organic Liquid Fertilizer Suitable for All Plant Types, Bigger Flowers and Jumbo Fruits

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10 Best Organic Grass Fertilizers 2025 in the United States

Humboldts Secret Set of A & B Liquid Hydroponics Fertilizer - World's Best Nutrient System – Hydroponic Nutrients for Outdoor, Indoor Plants – Supports Vegetative and Flowering Stages of Plants

Scotts Turf Builder WinterGuard Fall Lawn Fertilizer for All Grass Types, 4,000 sq. ft., 10 lbs.

Humboldts Secret Set of A & B Liquid Hydroponics Fertilizer - World's Best Nutrient System – Hydroponic Nutrients for Outdoor, Indoor Plants – Supports Vegetative and Flowering Stages of Plants

Scotts Turf Builder Starter Fertilizer for New Grass, Use When Planting Seed, 5,000 sq. ft., 15 lbs.

Scotts Green Max Lawn Food, Lawn Fertilizer Plus Iron Supplement for Greener Grass, 5,000 sq. ft., 16.67 lbs.

The Andersons PGF Balanced 10-10-10 Fertilizer with Micronutrients and 2% Iron (5,000 sq ft)

Advanced 16-4-8 Balanced NPK - Lawn Food Quality Liquid Fertilizer - Spring & Summer Concentrated Spray - Any Grass Type - Simple Lawn Solutions (32 Ounce)

Turf Perk Garden Perk Organic Plant Food | Outdoor and Indoor Plant Food, Garden Soil and Plant Nutrient | All Natural Amino Acid Liquid Plant Food Formula for Growing Big, Healthy Vegetable Plants

𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Plant Superfood for Succulents & Cactus Plants with B1 Vitamin, Glucose and Essential Minerals - Organic Plant Food Fertilizer for Indoor & Outdoor Succulents - 8oz

𝐏𝐑𝐎𝐅𝐄𝐒𝐒𝐈𝐎𝐍𝐀𝐋 All-Purpose 20-20-20 Liquid Fertilizer Spray for Lawns, Grass, Plants, Vegetables, Fruits & Flowers | 20-20-20 Liquid Fertilizer for Indoor and Outdoor Plants (32 OZ)

𝐏𝐑𝐄𝐌𝐈𝐔𝐌 All-Purpose 20-20-20 Liquid Fertlizer Spray - Increases Flowering and Yield on All Varieties of Fruits, Vegetables and Flowers| Liquid Plant Superfood Mist (8 OZ)

GARDENERA Premium 20-20-20 All Purpose Water Solubable Fertilizer for All Plant - Promotes Biomass Growth and Vibrant Leaf Color - 10 Quart

Scotts Turf Builder Lawn Food - Fertilizer for All Grass Types, 5,000 sq. ft., 12.5 lbs.

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

Ultimate 3-18-18 NPK- Lawn Food Quality Liquid Fertilizer- Easy to Use Concentrated Spray- Any Grass Type- Summer & Fall Nutrients- Simple Lawn Solutions - Turf Hardiness & Root Vigor (32 Ounce)

Espoma EOFW30 Organic Fall Fertilizer, 30-Pound

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

Organic Fertilizers

Grass Fertilizers

GARDENERA Banana Tree Potting Soil - Professional Grade Mix for Growing Delicious Bananas - Enhanced with Essential Nutrients for Bountiful Harvests (3 Quart)

Gardenera Premium Nutritional Plant Food Spray for Citron - Balanced Nutrition Plant Superfood | Excellent Growth Booster for Citron Trees - 8oz

𝐏𝐑𝐎𝐅𝐄𝐒𝐒𝐈𝐎𝐍𝐀𝐋 Grade Organic Cal-Mag Plus Growing Fertilizer Concentrate: Calcium, Magnesium, Iron & Micronutrients Supplement for Plant Deficiencies (9-0-0 NPK) - 32oz Bottle (Quart)

Gardenera Premium 𝐀𝐋𝐋-𝐏𝐔𝐑𝐏𝐎𝐒𝐄 𝟏𝟎-𝟏𝟎-𝟏𝟎 𝐋𝐢𝐪𝐮𝐢𝐝 𝐅𝐞𝐫𝐭𝐢𝐥𝐢𝐳𝐞𝐫 for Lawns, Plants, Vegetables, Fruits & Flowers, Liquid Plant Food 10-10-10 for Indoor/Outdoor Plants (32 OZ)

Bud Doublin Micros - All Natural Bud Fertilizer with Humic and Fulvic Acid (1 Quart) - Organic Liquid Fertilizer Suitable for All Plant Types, Bigger Flowers and Jumbo Fruits