10 bestOutdoor Cannabis Fertilizerof June 2026
112M consumers helped this year.
1
envii SeaFeed Xtra – Organic Liquid Seaweed Fertiliser - Multipurpose Outdoor & Indoor House Plant Food - 1 Litre Makes up to 500L
envii
9.9
28% off
2
Miracle-Gro Pour and Feed Liquid Plant Food, 1L
Miracle-Gro
9.8
5% off
3
Multi-Mite 2.5L Liquid Seaweed Organic Cold Pressed Concentrate - 100% Natural - Plant Feed Fertiliser Trees Lawn Veg & House Plants Root or Foliar Feed (2.5 LITRES)
Multi-Mite
9.6
4
Canna Bloom Booster Liquid 5L
CANNA
9.4
5
Envii Allgrow - Organic Multi-purpose Plant Feed - Liquid Outdoor Plant Food - 1 Litre Makes 330 Litres
envii
9.1
OtherUp to 27% off
Advanced Nutrients GL525050-12 Big Bud Liquid Fertilizer, 250 mL.250 Liter, Brown/A
Vitalink Earth Max Bloom 5L Plant Liquid Food For Compost & Soil Bloom Booster Additive Hydroponic Nutrient Feed For Faster Plant Growth
Growth Technology Fertiliser/Fertiliser Ionic Hydro Grow (1L)
Additive / Nutrient Green House Powder Feeding BioGrow (1Kg)
6
Xpert Nutrients Cal-Mag Amino Liquid Calcium and Magnesium Fertilizer (1L), Correct the Calcium and Magnesium deficiency, For Strong Plants
Xpert Nutrients
8.8
7
Fox Farm Liquid Nutrient Trio Soil Formula - Big Bloom, Grow Big, Tiger Bloom Pint Size (Pack Of 3)
FoxFarm
8.5
8
Advanced Nutrients ANBGMBD500 Bloom, Micro, Grow Fertilizer Bundle, 500ml Each, Original Version
Advanced Nutrients
8.2
9
Osmocote Pro 1kg Slow Release Fertiliser 17-9-10+2MgO+TE
Generic
8.0
10
Osmocote 'Exact' - Professional Slow Release Plant Fertiliser - 12-14 Months of Nutrients - Ideal for all Plants (1 KG) - Premium Quality Plant Nutrients
Acqua Tower Growing Systems
7.7
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