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10 bestOutdoor Cannabis Fertilizerof July 2025

112M consumers helped this year.

1

Miracle-Gro Water Soluble All Purpose Plant Food - 1.5kg
Miracle-Gro Water Soluble All Purpose Plant Food - 1.5kg

Miracle-Gro

9.8

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2

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

9.6

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3

Miracle-Gro Water Soluble Bloom Booster Plant Food - 1.5Kg
Miracle-Gro Water Soluble Bloom Booster Plant Food - 1.5Kg

Miracle-Gro

9.4

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4

Miracle-Gro Water Soluble Plant Food 20-20-20 Green
Miracle-Gro Water Soluble Plant Food 20-20-20 Green

Miracle-Gro

9.1

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5

Advanced Nutrients Bloom, Micro & Grow, 1 L Each
Advanced Nutrients Bloom, Micro & Grow, 1 L Each

Advanced Nutrients

8.8

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Reefertilizer® Bloom - NPK + Micronutrients for Plants in Flower | 1.1lb Canadian Dry Powder Fertilizer Flowering Nutrients Bloom Booster | 160 Feeding or up to 8 plants in soil, coco, DWC, hydroponic

Reefertilizer® Bloom - NPK + Micronutrients for Plants in Flower | 1.1lb Canadian Dry Powder Fertilizer Flowering Nutrients Bloom Booster | 160 Feeding or up to 8 plants in soil, coco, DWC, hydroponic

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Green Rush Nutrients Organic Double Pack - Leafy Green Grow & Beefy Bud Bloom Combo for Veg & Bloom (500g Each)

Green Rush Nutrients Organic Double Pack - Leafy Green Grow & Beefy Bud Bloom Combo for Veg & Bloom (500g Each)

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FoxFarm FX14092 Grow Big Liquid Concentrate Fertilizer, Soil NPK 6-4-4, 1-Pint

FoxFarm FX14092 Grow Big Liquid Concentrate Fertilizer, Soil NPK 6-4-4, 1-Pint

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Dyna-Gro Gro-008 Grow 7-9-5 Plant Food, 8-Ounce

Dyna-Gro Gro-008 Grow 7-9-5 Plant Food, 8-Ounce

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42% off

6

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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7

Gaia Green 2-8-4 Power Bloom - great for bigger flowers, more tomatoes, and healthier plants
Gaia Green 2-8-4 Power Bloom - great for bigger flowers, more tomatoes, and healthier plants

Gaia Green

8.2

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8

General Hydroponics Flora Series FloraGro FloraBloom FloraMicro 1 Litre 1 Quart
General Hydroponics Flora Series FloraGro FloraBloom FloraMicro 1 Litre 1 Quart

General Hydroponics

7.9

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9

Cronk Nutrients CalMag 2-0-0 - Calcium, Magnesium and Iron Plant Fertilizer – Compatible with Soil, Soilless and Hydroponic Garden – Correct Common Deficiencies for Indoor & Outdoor Plants - 500mL
Cronk Nutrients CalMag 2-0-0 - Calcium, Magnesium and Iron Plant Fertilizer – Compatible with Soil, Soilless and Hydroponic Garden – Correct Common Deficiencies for Indoor & Outdoor Plants - 500mL

Cronk Grow Nutrients

7.6

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10

General Hydroponics GLCMBX0009 Calimagic & Flora GRO, Micro & Bloom Combo, 1 Quart Fertilizer
General Hydroponics GLCMBX0009 Calimagic & Flora GRO, Micro & Bloom Combo, 1 Quart Fertilizer

General Hydroponics

7.3

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