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10 bestOutdoor Cannabis Fertilizerof May 2025

112M consumers helped this year.

28% off

1

Miracle-Gro Pour and Feed Liquid Plant Food, 1L
Miracle-Gro Pour and Feed Liquid Plant Food, 1L

Miracle-Gro

9.7

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2

Envii Allgrow - Organic Multi-purpose Plant Feed - Liquid Outdoor Plant Food - 1 Litre Makes 330 Litres
Envii Allgrow - Organic Multi-purpose Plant Feed - Liquid Outdoor Plant Food - 1 Litre Makes 330 Litres

envii

9.4

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3

Multi-Mite 2.5L Liquid Seaweed Organic Concentrate - 100% Natural - Plant Feed Fertiliser Trees Lawn Veg & House Plants Root or Foliar Feed (2.5 LITRES)
Multi-Mite 2.5L Liquid Seaweed Organic Concentrate - 100% Natural - Plant Feed Fertiliser Trees Lawn Veg & House Plants Root or Foliar Feed (2.5 LITRES)

Multi-Mite

9.2

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4

Osmocote Controlled Release Plant Food Tablets 25x5g
Osmocote Controlled Release Plant Food Tablets 25x5g

Greenfingers

8.9

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5

VitaLink CalMag 1L | Calcium & Magnesium Plant Additive with Beneficial Iron
VitaLink CalMag 1L | Calcium & Magnesium Plant Additive with Beneficial Iron

VitaLink

8.6

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Xpert Nutrients Cal-Mag Amino Liquid Calcium and Magnesium Fertilizer (1L), Correct the Calcium and Magnesium deficiency, For Strong Plants

Xpert Nutrients Cal-Mag Amino Liquid Calcium and Magnesium Fertilizer (1L), Correct the Calcium and Magnesium deficiency, For Strong Plants

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Osmocote 'Exact' - Professional Slow Release Plant Fertiliser - 12-14 Months of Nutrients - Ideal for all Plants (1 KG) - Premium Quality Plant Nutrients

Osmocote 'Exact' - Professional Slow Release Plant Fertiliser - 12-14 Months of Nutrients - Ideal for all Plants (1 KG) - Premium Quality Plant Nutrients

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Growth Technology Fertiliser/Fertiliser Ionic Hydro Grow (1L)

Growth Technology Fertiliser/Fertiliser Ionic Hydro Grow (1L)

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Fox Farm FX14050 Big Bloom, Grow Big & Tiger Bloom Liquid Fertilizer Nutrient Trio Hydro-Formula, 3/32-Ounce Bottles

Fox Farm FX14050 Big Bloom, Grow Big & Tiger Bloom Liquid Fertilizer Nutrient Trio Hydro-Formula, 3/32-Ounce Bottles

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6

Hydrofarm Fox Farm FX14049 Liquid Nutrient Trio Soil Formula: Big Bloom, Grow Big, Tiger Bloom (Pack of 3-32 Oz. Bottles)
Hydrofarm Fox Farm FX14049 Liquid Nutrient Trio Soil Formula: Big Bloom, Grow Big, Tiger Bloom (Pack of 3-32 Oz. Bottles)

Hydrofarm

8.3

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7

Fox Farm Liquid Nutrient Trio Soil Formula - Big Bloom, Grow Big, Tiger Bloom Pint Size (Pack Of 3)
Fox Farm Liquid Nutrient Trio Soil Formula - Big Bloom, Grow Big, Tiger Bloom Pint Size (Pack Of 3)

ZYZYZK

8.0

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8

Advanced Nutrients GL525050-12 Big Bud Liquid Fertilizer, 250 mL.250 Liter, Brown/A
Advanced Nutrients GL525050-12 Big Bud Liquid Fertilizer, 250 mL.250 Liter, Brown/A

Advanced Nutrients

7.7

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9

Formulex 1L
Formulex 1L

Formulex

7.4

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10

Advanced Nutrients ANBGMBD500 Bloom, Micro, Grow Fertilizer Bundle, 500ml Each, Original Version
Advanced Nutrients ANBGMBD500 Bloom, Micro, Grow Fertilizer Bundle, 500ml Each, Original Version

Advanced Nutrients

7.1

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