Cold-Processed Liquid Fish Fertilizer for Soil and Plant Vitality
Neptune’s Harvest Fish Fertilizer 2-4-1 is a biologically rich liquid fertilizer made from fresh North Atlantic fish, cold-processed to retain natural oils, proteins, enzymes, and micronutrients. With a balanced NPK of 2-4-1, this fertilizer supports strong root growth, steady vegetative development, and flower formation, while also stimulating soil microbial activity and improving nutrient cycling.
Perfect for use in vegetable gardens, fruit trees, greenhouse crops, raised beds, and compost teas, it’s a favorite among organic growers for both foliar feeding and root drenching.
Key Characteristics
Biologically Active Fertility for Soil and Plants Unlike fish emulsions that are heat-processed and stripped of oils, Neptune’s Harvest uses enzymatic cold processing to retain full-spectrum nutrition-including amino acids, trace minerals, and natural growth hormones like auxins and cytokinins.
Supports Rooting, Flowering, and Early Fruiting With higher phosphorus (4%) than most fish-based fertilizers, this formula promotes excellent root establishment, early blossom formation, and fruit set in vegetables, berries, and herbs. The 2% nitrogen supports steady, balanced green growth.
How to Use in Garden Beds, Containers, and Orchards
Soil drench: Mix 1 oz (2 tablespoons) per gallon of water and apply around root zone every 1-2 weeks.
Foliar feed: Mix 1 oz per gallon and spray on leaves early morning or evening.
Compost tea: Add as a microbe feed during brewing (1-2 tbsp per gallon).
Transplants: Use diluted drench to reduce shock and encourage root development.
Feeds Soil Microbes and Enhances Organic Matter Cycling Fish hydrolysate is one of the best microbial foods available. It feeds beneficial fungi and bacteria that help unlock soil nutrients and build humus-key to any regenerative system.
Best For These Crops and Systems
Tomatoes, peppers, corn, squash, and cucumbers
Leafy greens, root crops, herbs, and berries
Fruit trees, perennials, vines, and compost systems
Raised beds, container gardens, food forests, and greenhouse production
Product Details
Type: Cold-processed liquid fish hydrolysate fertilizer
NPK: 2-4-1
Use Method: Soil drench, foliar spray, compost tea input
Application Rate: 1 oz per gallon of water (every 1-2 weeks)
Best For: Vegetables, fruits, herbs, perennials, compost
Packaging: Available in quarts, gallons, and bulk sizes
Neptune’s Harvest Fish Fertilizer 2-4-1 offers a nutrient-dense, biologically active boost that feeds both your crops and your soil. It’s a foundational input for organic and regenerative gardeners aiming for vigorous plants and living soil.
