10 bestOutdoor Cannabis Fertilizerof August 2026
112M consumers helped this year.
10% off
1
MARPHYL All-Purpose Plant Food – Organic Nutrient-Rich Fertilizer & Soil Enhancer for Indoor & Outdoor Flowers, Vegetables, Succulents, Bamboo & Hydroponics
MARPHYL
9.8
5% off
2
Miracle-Gro Water Soluble All Purpose Plant Food, 1.5kg | Instantly Feeds All Flowers, Veggies, Trees & Shrubs for Bigger, More Beautiful Plants
Miracle-Gro
9.6
5% off
3
Miracle-Gro Water Soluble Bloom Booster Plant Food, 1.5kg | Promotes More Blooms & Colour | Instant Fertilizer for Indoor & Outdoor Flowers
Miracle-Gro
9.4
4
Advanced Nutrients Bloom, Micro & Grow, 1 L Each
Advanced Nutrients
9.1
5
Gaia Green Organic 4-4-4 All Purpose Fertilizer 2kg
Gaia Green
8.8
Other
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
Strive Fertilizer Starter Kit Combo - Veg + Bloom General Hydroponic Nutrients - Indoor, Outdoor and Soil Growing Plant Food - Enhancer - Booster for Vegetables, Flowers
Gaia Green 2-8-4 Power Bloom 2kg - Great for Bigger Flowers, More Tomatoes, and Healthier Plants
Dyna-GRO Gro-008 Grow 7-9-5 Plant Food, 8-Ounce
10% off
6
Green Rush Nutrients Organic Double Pack - Leafy Green Grow & Beefy Bud Bloom Combo for Veg & Bloom (500g Each)
Green Rush Nutrients
8.5
7
General Hydroponics GLCMBX0009 Calimagic & Flora GRO, Micro & Bloom Combo, 1 Quart Fertilizer
General Hydroponics
8.2
8
General Hydroponics Flora Series FloraGro FloraBloom FloraMicro 1 Litre 1 Quart
Swuo
7.9
9
Advanced Nutrients pH Perfect Hydroponic Nutrients: Bloom, Micro and Grow 1-Liter PACK OF 3
UOOTPC
7.6
10
Reefertilizer Grow | NPK + Micronutrients for Veg Stage Indoor and Outdoor Plants | 1.1lbs Powder Fertilizer Vegetative Nutrients for Soil, Coco, DWC, Hydroponics
Reefertilizer
7.3
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