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Gardening & Lawn Care

Organic Houseplant Fertilizers

10 Best Organic Houseplant Fertilizers 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

Diatomaceous Earth Food Grade (Fresh Water Type) 2lb Zipper Bag Codex DE (0.2)

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Winner

Miracle-Gro

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

9.8

score

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Diatomaceous Earth Food Grade (Fresh Water Type) 2lb Zipper Bag Codex DE (0.2)

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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

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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

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Purived

Purived 16oz All-Purpose Liquid Plant Fertilizer - Makes 50 Gallons, for Indoor Houseplants, All-Natural, Groundwater Safe, Made in USA

9.1

score

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ZYZYZK

Jobe's 5001T Houseplant Indoor Fertilizer Food Spikes, 50 Pack(2)

8.8

score

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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]

8.6

score

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True Organic

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

8.3

score

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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

8.0

score

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The Grow Co

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

7.8

score

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#10

BLESS YOUR SOIL

Big Green Leaves | Superfood Houseplant Fertilizer, Indoor Plants - All Purpose + Organic Sea Kelp | 4X More Concentrated | 12-4-8 NPK (1LB)

7.5

score

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10 Best Organic Houseplant Fertilizers 2025 in the United States

Diatomaceous Earth Food Grade (Fresh Water Type) 2lb Zipper Bag Codex DE (0.2)

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

Diatomaceous Earth Food Grade (Fresh Water Type) 2lb Zipper Bag Codex DE (0.2)

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

Purived 16oz All-Purpose Liquid Plant Fertilizer - Makes 50 Gallons, for Indoor Houseplants, All-Natural, Groundwater Safe, Made in USA

Jobe's 5001T Houseplant Indoor Fertilizer Food Spikes, 50 Pack(2)

Southern Homewares Organic Food Grade Diatomaceous Earth 1lb - All-Natural, Safe Food Additive - Anticaking Agent - Reusable Zipper Bag - Versatile Diatomaceous Earth for Household, Lawn & Yard

Diatomaceous Earth Food Grade (Fresh Water Type) 2lb Zipper Bag Codex DE (0.2)

Best Plant and Root Enzymes - Humboldts Secret Plant Enzymes - 7,000 Active Units of Enzyme per Milliliter. (5 Gallon)

Humboldts Secret Flower Stacker – Best Flowering Formula for Bigger Harvests - Flowering Plant Food – Nutrient System for Potting Soil for Indoor & Outdoor Plants - 5 Gallons

Humboldts Secret Calcium, Magnesium and Iron Supplement – Hydroponic Supplies – Liquid Nutrient Fertilizer – Supports Vegetative and Flowering Stage (5 Gallon)

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]

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)

Big Green Leaves | Superfood Houseplant Fertilizer, Indoor Plants - All Purpose + Organic Sea Kelp | 4X More Concentrated | 12-4-8 NPK (1LB)

Organic Plant Fertilizers

Organic Fertilizers