Comparison: Best Fish Emulsion Fertilizer For Lawns (Updated | Dec 1st)

Lawns generally benefit from a higher nitrogen content to promote vigorous, green growth, so a ratio like 5-1-1 or 12-2-2 works well. Products such as Alaska Fish Fertilizer (5-1-1) and the 12-2-2 powder provide ample nitrogen while still supplying phosphorus and potassium for root development. Choose a formula that matches your soil test recommendations for balanced nutrition.

Liquid emulsions, like the 1‑gallon Alaska Fish Emulsion, are easy to mix with water and apply with a hose or sprayer, but they often have a stronger fishy odor. Powdered options, such as the 12‑2‑2 fish protein powder, are less odorous, store longer, and can be re‑constituted to cover large areas with less waste. Both deliver the same nutrients; the choice depends on your preference for handling and smell.

Yes, OMRI‑listed products meet strict organic standards, meaning they contain no prohibited synthetic chemicals. The Alaska Fish Fertilizer OMRI Listed 5‑1‑1 and GS Plant Foods Liquid Fish & Kelp Fertilizer both carry this certification, making them suitable for certified organic lawns and garden beds.

When evaluating cost per nutrient, the 1‑gallon Alaska Fish Emulsion (5‑1‑1) and the 1‑gallon Organic Fish Emulsion with a 2‑3‑1 ratio provide a good balance of price and coverage. The 12‑2‑2 powder can stretch even further, making up to 100 gallons of liquid feed per pound, which is economical for large lawns but requires mixing. Compare the total price and the number of applications each product supports to determine true value.

For most lawns, applying a light feeding every 4‑6 weeks during the growing season keeps nitrogen levels steady without causing burn. Liquid formulas are typically diluted to 1‑2 tbsp per gallon of water and applied as a soil drench, while powder mixes can be watered in every 2‑3 weeks. Adjust frequency based on soil test results and visible lawn vigor.

Yes, products that combine fish emulsion with kelp, such as GS Plant Foods Liquid Fish & Kelp Fertilizer, supply additional trace minerals and hormones that enhance root growth and stress tolerance. The kelp component also helps improve soil microbial activity, which can lead to a more resilient lawn. If your soil lacks micronutrients, a blended formula can be a worthwhile upgrade.

Concentrated emulsions, like the Alaska Fish Emulsion 5‑1‑1 Concentrate (1 gallon), require more dilution but allow you to cover larger areas with less product, reducing storage space. Regular strength formulas are pre‑diluted to a ready‑to‑use ratio, which can be simpler for occasional applications. Both provide the same nutrient profile; the main distinction is how much water you mix per application.

Fish emulsions naturally have a fishy odor, but some products, such as the Alaska concentrate, are deodorized with natural wintergreen to lessen the scent. Powdered fish protein eliminates most odor and is easier to store without risk of leakage. If you have a small storage space or are sensitive to smell, a deodorized liquid or powder may be the better choice.