10 bestOutdoor Cannabis Fertilizerof March 2026
112M consumers helped this year.
23% 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
9.7
5% off
2
Miracle-Gro Water Soluble All Purpose Plant Food - 1.5kg
Miracle-Gro
9.4
28% off
3
Advanced Nutrients Bloom, Micro & Grow, 1 L Each
Advanced Nutrients
9.1
4
General Hydroponics GLCMBX0009 Calimagic & Flora GRO, Micro & Bloom Combo, 1 Quart Fertilizer
General Hydroponics
8.8
5
Young Urban Farmers Gaia Green All Purpose Fertilizer 4-4-4 20kg
Young Urban Farmers
8.5
OtherUp to 13% off
Dyna-Gro Gro-008 Grow 7-9-5 Plant Food, 8-Ounce
Advanced Nutrients pH Perfect Hydroponic Nutrients: Bloom, Micro and Grow 1-Liter PACK OF 3
Green Rush Nutrients Organic Double Pack - Leafy Green Grow & Beefy Bud Bloom Combo for Veg & Bloom (500g Each)
Miracle-Gro Water Soluble Bloom Booster Plant Food - 1.5Kg
6
Gaia Green Power Bloom 2-8-4 10kg
Advanced Nutrients
8.2
38% off
7
Gaia Green Organic 4-4-4 All Purpose Fertilizer 2kg
Gaia Green
7.9
8
General Hydroponics Flora Series FloraGro FloraBloom FloraMicro 1 Litre 1 Quart
General Hydroponics
7.6
9
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
7.3
16% off
10
Miracle-Gro Water Soluble Plant Food 20-20-20 Green
Miracle-Gro
7.0
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