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10 bestOrganic Plant Fertilizersof September 2025

112M consumers helped this year.

1

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

MARPHYL

9.7

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2

PureLife Soil Premium Worm Castings 5 Liter Bag Promotes Plant Growth and Root Structure
PureLife Soil Premium Worm Castings 5 Liter Bag Promotes Plant Growth and Root Structure

PureLife Soil

9.4

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3

Espoma CT4 4 Lbs Citrus-Tone® 5-2-6 Plant Food
Espoma CT4 4 Lbs Citrus-Tone® 5-2-6 Plant Food

Espoma

9.1

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4

Jobe's Organics Fruit & Citrus Fertilizer Spikes, 6 Spikes
Jobe's Organics Fruit & Citrus Fertilizer Spikes, 6 Spikes

Jobe's Organics

8.8

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42% off

5

Gaia Green Organic 4-4-4 All Purpose Fertilizer 2kg
Gaia Green Organic 4-4-4 All Purpose Fertilizer 2kg

Gaia Green

8.5

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Related productsUp to 29% off

Espoma Co. PT4 4-Pound Plant-Tone Organic 5-3-3 Food

Espoma Co. PT4 4-Pound Plant-Tone Organic 5-3-3 Food

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Jocelyn's Organic Soil Booster Worm Manure | Worm Castings | Natural Alternative to Chemical Plant Fertilizer, Supercharged Soil, Concentrated Microbiology for Potting Soil Indoor or Outdoor (700g)

Jocelyn's Organic Soil Booster Worm Manure | Worm Castings | Natural Alternative to Chemical Plant Fertilizer, Supercharged Soil, Concentrated Microbiology for Potting Soil Indoor or Outdoor (700g)

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Jobe's Tomato Spikes,18 Spikes in Blister Pack, 18-Spikes Per Package

Jobe's Tomato Spikes,18 Spikes in Blister Pack, 18-Spikes Per Package

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Neptune's Harvest Hydrolyzed Fish Fertilizer

Neptune's Harvest Hydrolyzed Fish Fertilizer

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17% off

6

Neptune's Harvest HF136 Hydrolyzed Fish Fertilizer 2-4-1, 36 Ounce
Neptune's Harvest HF136 Hydrolyzed Fish Fertilizer 2-4-1, 36 Ounce

Neptune's Harvest

8.2

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5% off

7

Gaia Green Worm Casting (2 litres)
Gaia Green Worm Casting (2 litres)

Gaia Green

7.9

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12% off

8

Neptune's Harvest Fish & Seaweed Blend Fertilizer 2-3-1 36 Oz
Neptune's Harvest Fish & Seaweed Blend Fertilizer 2-3-1 36 Oz

Neptune's Harvest

7.6

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9

Jobe’s Organics Fruit & Citrus Fertilizer with Biozome, 3-5-5 Organic Fast Acting Granular Fertilizer for All Fruit and Citrus Trees, 4 Pound Bag
Jobe’s Organics Fruit & Citrus Fertilizer with Biozome, 3-5-5 Organic Fast Acting Granular Fertilizer for All Fruit and Citrus Trees, 4 Pound Bag

Jobe's Organics

7.4

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7% off

10

Young Urban Farmers Gaia Green All Purpose Fertilizer 4-4-4 20kg
Young Urban Farmers Gaia Green All Purpose Fertilizer 4-4-4 20kg

Young Urban Farmers

7.1

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