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Fish Emulsion: Complete Guide

Oregon State Extension

A gentle, organic liquid fertilizer made from processed fish. Low concentration makes it nearly impossible to burn plants. Excellent for seedlings and transplants. Strong fish odor dissipates within 24 hours.

Key Facts

5N
1P
1K
N 5% Nitrogen: leaf and stem growth
P 1% Phosphorus: roots and flowers
K 1% Potassium: health and disease resistance
Learn more about NPK
NPK Ratio
5N
1P
1K
N 5% Nitrogen: leaf and stem growth
P 1% Phosphorus: roots and flowers
K 1% Potassium: health and disease resistance
Learn more about NPK
Formliquid concentrate
Application Rate2-3 tablespoons per gallon of water, apply every 2-4 weeks
Price~$4/lb est.
Release Speedmoderate
Burn Risklow
organicliquid concentrate

What is Fish Emulsion Best For?

seedlingstransplantscontainer plantsleafy greenshouseplants

When Should You Use Fish Emulsion?

Use for seedlings, transplants, and weekly feeding of container plants. Safe for foliar application.

When Should You NOT Use Fish Emulsion?

Odor is unpleasant for indoor use. Not efficient for large-area lawn applications.

Source:Oregon State Extension