10 bestOrganic Liquid Fertilizersof September 2025
112M consumers helped this year.
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
9% off
2
Organic Liquid Fertilizer (500ml / 16.9oz)
EVERBLOOM GREEN
9.4
3
Neptune's Harvest Fish & Seaweed Blend Fertilizer 2-3-1 36 Oz
Neptune's Harvest
9.1
17% off
4
Neptune's Harvest HF136 Hydrolyzed Fish Fertilizer 2-4-1, 36 Ounce
Neptune's Harvest
8.8
7% off
5
Neptune's Harvest TV136 Tomato & Veg Formula Fertilizer, 36 oz
Neptune's Harvest
8.5
6
Neptune's Harvest Hydrolyzed Fish Fertilizer
Neptune's Harvest
8.2
7
AgroThrive Organic General Purpose Fertilizer (4-pack, 1 Gal)
AgroThrive
7.9
8
Neptune's Harvest Liquid Seaweed Plant Food 0-0-1 1qt
Neptune's Harvest
7.6
9
1L 6-12-6 Liquid Multi Purpose Fertilizer
Pro-Mix
7.3
10
Hydro Organics/Earth Juice Grow Germination, 1-Quart
Earth Juice
7.0
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