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10 bestOutdoor Cannabis Fertilizerof December 2025

112M consumers helped this year.

10% off

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

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

General Hydroponics

9.4

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29% off

3

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

Advanced Nutrients

9.1

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4

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

8.9

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5

Strive Fertilizer Starter Kit Combo - Veg + Bloom General Hydroponic Nutrients - Premium Indoor, Outdoor and Soil Growing Plant Food - Enhancer - Booster for Vegetables, Succulents, Flowers
Strive Fertilizer Starter Kit Combo - Veg + Bloom General Hydroponic Nutrients - Premium Indoor, Outdoor and Soil Growing Plant Food - Enhancer - Booster for Vegetables, Succulents, Flowers

Strive Nutrients

8.6

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Cronk Nutrients 3-Part Kit: Micro, Grow & Bloom Base Fertilizers for Optimal Indoor & Outdoor Plant Growth - Hydroponics, Soil, Soilless Gardens - Supports Abundant Blooms - 3X 500ml

Cronk Nutrients 3-Part Kit: Micro, Grow & Bloom Base Fertilizers for Optimal Indoor & Outdoor Plant Growth - Hydroponics, Soil, Soilless Gardens - Supports Abundant Blooms - 3X 500ml

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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

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Gaia Green Power Bloom 2-8-4 10kg

Gaia Green Power Bloom 2-8-4 10kg

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

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

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5% off

6

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

Miracle-Gro

8.3

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7

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

8.0

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10% off

8

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)

Green Rush Nutrients

7.7

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20% off

9

Advanced Nutrients pH Perfect Hydroponic Nutrients: Bloom, Micro and Grow 1-Liter PACK OF 3
Advanced Nutrients pH Perfect Hydroponic Nutrients: Bloom, Micro and Grow 1-Liter PACK OF 3

UOOTPC

7.4

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10

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

7.1

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