We Use CookiesWe use cookies to enhance the security, performance, functionality and for analytical and promotional activities. By continuing to browse this site you are agreeing to our privacy policy

All Categories

Patio, Lawn & Garden

Gardening & Lawn Care

Organic Indoor Plant Fertilizer

10 Best Organic Indoor Plant Fertilizer 2025 in the United States

Name: Miracle-Gro Indoor Plant Food (Liquid), 8 oz., Instantly Feeds All Indoor Houseplants Including Edibles, 2-Pack
Brand: Miracle-Gro
Price: 15.82 USD
Availability: InStock

From leading brands and best sellers available on the web.

GS Plant Foods Seaweed Fertilizer - Omri Organic Liquid Kelp Seaweed Fertilizer (275 Gallon) - Liquid Kelp & Seaweed Concentrate for Farms, Gardens, Greenhouses, Lawns & Soil

View on Amazon

Winner

Miracle-Gro

Miracle-Gro Indoor Plant Food (Liquid), 8 oz., Instantly Feeds All Indoor Houseplants Including Edibles, 2-Pack

9.9

score

View on Amazon

GS Plant Foods Seaweed Fertilizer - Omri Organic Liquid Kelp Seaweed Fertilizer (275 Gallon) - Liquid Kelp & Seaweed Concentrate for Farms, Gardens, Greenhouses, Lawns & Soil

View on Amazon

Burpee

Editor’s Choice

Burpee Natural Purpose Granular 4-Lb Organic Food for Growing Strong Plants | Good for Vegetable Garden, Flower Garden & Seed Starting, 4 lb, 4lb. Bag

9.8

score

View on Amazon

Easy Peasy

Easy Peasy Liquid All Purpose Indoor Plant Food | 4-3-4 Nutrient Fertilizer for Indoor Potted Plants | Specifically Formulated for Live Houseplants

9.6

score

View on Amazon

MARPHYL

MARPHYL Organic Liquid Fertilizer - Outdoor & Indoor Plant Food - All-Purpose, Nutrient-Rich Lawn Fertilizer & Soil Enhancer for House Plants, Flowers, Vegetables, Succulents, Bamboo, Hydroponics

9.3

score

View on Amazon

Organic Plant Magic

Organic Plant Magic - Truly Organic™ Fast-Acting Water Soluble Plant Food - All-Purpose Fertilizer Concentrate for Flower, Vegetable, Herb, Fruit Tree, Garden & Indoor Houseplants [One 1/2 lb Bag]

9.1

score

View on Amazon

True Organic

True Organic All Purpose Liquid Plant Food - Liquid Fertilizer 16oz - CDFA, OMRI Listed for Organic Gardening NPK 3-2-2

8.8

score

View on Amazon

HiThrive

16oz Houseplant Fertilizer, All Purpose Indoor Plant Food - Makes 87+ Gallons, Indoor Plant Fertilizer for Fiddle Leaf Fig Tree, Pothos and More, 6-2-4 NPK, Concentrated Fertilizer for Indoor Plants

8.6

score

View on Amazon

The Grow Co

Organic Indoor Plant Food - All-Purpose Liquid Fertilizer - Best for Live Houseplants Indoors + Common Home Outdoor Plants in Pots (8 oz)

8.3

score

View on Amazon

FoxFarm

FoxFarm - Big Bloom Plant Food, Liquid Fertilizer Concentrate for Flowers, Fruits, and Vegetables, All Purpose Plant Fertilizer for Indoor & Outdoor Potted Plants, NPK 0.01-0.03-0.7

8.0

score

View on Amazon

#10

Bloom City

Organic Liquid Seaweed and Kelp Fertilizer Supplement by Bloom City, Quart (32 oz) Concentrated Makes 180 Gallons

7.7

score

View on Amazon

More products we considered

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

View Deal

Arber Nutrition & Health Starter Set - Organic Plant Nourishment, Protection & Growth Boost - Liquid Concentrate for Gardens (Organic Nutrition & Health Set)

View Deal

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)

View Deal

Humboldts Secret pH Down | Liquid pH Plant Balancer for Soil & Hydroponics Growing System (8 Ounce)

View Deal

Humboldts Secret Calcium, Magnesium and Iron Supplement – Hydroponic Supplies – Liquid Nutrient Fertilizer – Supports Vegetative and Flowering Stage – 8 Ounce

View Deal

How do we rank products for you?

Our technology thoroughly searches through the online shopping world, reviewing hundreds of sites. We then process and analyze this information, updating in real-time to bring you the latest top-rated products. This way, you always get the best and most current options available.

10 Best Organic Indoor Plant Fertilizer 2025 in the United States

GS Plant Foods Seaweed Fertilizer - Omri Organic Liquid Kelp Seaweed Fertilizer (275 Gallon) - Liquid Kelp & Seaweed Concentrate for Farms, Gardens, Greenhouses, Lawns & Soil

Miracle-Gro Indoor Plant Food (Liquid), 8 oz., Instantly Feeds All Indoor Houseplants Including Edibles, 2-Pack

GS Plant Foods Seaweed Fertilizer - Omri Organic Liquid Kelp Seaweed Fertilizer (275 Gallon) - Liquid Kelp & Seaweed Concentrate for Farms, Gardens, Greenhouses, Lawns & Soil

Burpee Natural Purpose Granular 4-Lb Organic Food for Growing Strong Plants | Good for Vegetable Garden, Flower Garden & Seed Starting, 4 lb, 4lb. Bag

Easy Peasy Liquid All Purpose Indoor Plant Food | 4-3-4 Nutrient Fertilizer for Indoor Potted Plants | Specifically Formulated for Live Houseplants

MARPHYL Organic Liquid Fertilizer - Outdoor & Indoor Plant Food - All-Purpose, Nutrient-Rich Lawn Fertilizer & Soil Enhancer for House Plants, Flowers, Vegetables, Succulents, Bamboo, Hydroponics

Organic Plant Magic - Truly Organic™ Fast-Acting Water Soluble Plant Food - All-Purpose Fertilizer Concentrate for Flower, Vegetable, Herb, Fruit Tree, Garden & Indoor Houseplants [One 1/2 lb Bag]

100 EarthPods - Premium Bio Organic Citrus Fertilizer Spikes - Special Plant Food Formulated for Citrus Fruit Trees - Made in USA

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

Humic Acid - Organic Liquid Humic Concentrate with Fulvic Acid - (5 Gallon Drum) - Multi-Purpose Soil Conditioner - Suitable for Gardens, Lawns, Houseplants & Trees

Omri Listed Fish & Kelp Fertilizer for Plants

Humboldts Secret Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Enhance Aroma and Flavor of Plants – Potting Soil for Indoor Plants – Energy for Plants – 8 Ounce

True Organic All Purpose Liquid Plant Food - Liquid Fertilizer 16oz - CDFA, OMRI Listed for Organic Gardening NPK 3-2-2

16oz Houseplant Fertilizer, All Purpose Indoor Plant Food - Makes 87+ Gallons, Indoor Plant Fertilizer for Fiddle Leaf Fig Tree, Pothos and More, 6-2-4 NPK, Concentrated Fertilizer for Indoor Plants

Organic Indoor Plant Food - All-Purpose Liquid Fertilizer - Best for Live Houseplants Indoors + Common Home Outdoor Plants in Pots (8 oz)

FoxFarm - Big Bloom Plant Food, Liquid Fertilizer Concentrate for Flowers, Fruits, and Vegetables, All Purpose Plant Fertilizer for Indoor & Outdoor Potted Plants, NPK 0.01-0.03-0.7

Organic Liquid Seaweed and Kelp Fertilizer Supplement by Bloom City, Quart (32 oz) Concentrated Makes 180 Gallons

Organic Plant Fertilizers

Organic Houseplant Fertilizers

Organic Fertilizers

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

Arber Nutrition & Health Starter Set - Organic Plant Nourishment, Protection & Growth Boost - Liquid Concentrate for Gardens (Organic Nutrition & Health Set)

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)

Humboldts Secret pH Down | Liquid pH Plant Balancer for Soil & Hydroponics Growing System (8 Ounce)

Humboldts Secret Calcium, Magnesium and Iron Supplement – Hydroponic Supplies – Liquid Nutrient Fertilizer – Supports Vegetative and Flowering Stage – 8 Ounce