Organic Fertilizers / Liquid Fertilizers

Neptune's Harvest Fish Seaweed Blend 2-3-1

With the best of both Fish Hydrolysate and Seaweed (Kelp), Neptune's Harvest Fish-Seaweed Blend is a complete and effective liquid organic fertilizer.

Neptune's Harvest Fish-Seaweed Blend is an organic fertilizer made from fresh North Atlantic fish hydrolysate and North Atlantic seaweed (kelp). This combination gives you the best of both products with a perfect blend of fish hydrolysate and seaweed for a complete organic fertilizer. With over 60 naturally occurring major and minor chelated nutrients, natural growth promoting plant hormones, proteins, amino acids and soil-building organic matter, this combination is synergistic for plant, tree and turf growth!  Growers using our Fish-Seaweed Blend fertilizer on a regular basis have reported increased marketable yields, better quality plants and turf and improved shelf life on fruits and vegetables. Fish and Seaweed are both known to build the natural sugar in plants for better tasting, higher quality produce. Flowers and foliage will be stronger and more colorful after treatment with Fish-Seaweed Blend. Blooms will be more plentiful, fragrant and longer lasting.

What Are the Advantages of Using a Fish-Seaweed Blend?

  • Neptune's Harvest's Fish-Seaweed Blend gives you the best of both of our Hydrolyzed Fish and Seaweed products for a complete organic fertilizer.
  • Fish-Seaweed fertilizers contains many more nutrients than Standard N-P-K fertilizers. These additional nutrients address a wider array of deficiencies.
  • Organic fertilizers stimulate beneficial microbe growth.
  • The organic nutrients in Neptune’s Harvest organic fertilizers are naturally chelated. That makes them more bioavailable for plant consumption and they will remain in the soil for a much longer period.
  • Fish-Seaweed fertilizers are commercially proven to outperform synthetic fertilizers.
  • Fish-Seaweed fertilizers increase natural sugars (brix) in plants and turf, making them healthier and less susceptible to disease and insect damage.
  • Higher sugars (brix) also make fruits and vegetables taste better and have increased market value.
  • Flowers will have more plentiful and vivid colors and blooms, and these blooms will last longer.
  • Neptune’s Harvest is an excellent natural deer repellent.

Neptune’s Harvest Fish-Seaweed Blend is organic and environmentally-friendly, can be used on all plants, trees and turfs and is safe for pets, animals and children.

Scientific References

Seaweed extract benefits petunia, tomato transplants.

General Treatment Instructions

Use Neptune's Fish-Seaweed Blend at a general rate of 2 gallons per acre (6 ounces per 1,000 square feet), 2 to 3 times per year.
For the best and most complete turf program and results, mix Neptune's Harvest Turf Formula with 3 ounces per 1,000 square feet or 1 ounce per gallon of Quantum Growth or MicrobeLife Probiotics (see above turf picture for results).

Click Here For A More Detailed Application Chart


Made from pure North Atlantic Hydrolyzed Fish and pure North Atlantic Seaweed (Ascophyllum nodosum).

Available Sizes

• 1 Pint
• 1 Quart
• 1 Gallon
• 5 Gallon
• 55 Gallon Drum
• 275 Gallon Tote

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