Neptune's Harvest Fish Fertilizer
Best organic liquid fertilizer for health-conscious indoor and outdoor gardeners.
This cold-processed concentrate delivers the raw, nutrient-dense power of North Atlantic fish without the lingering stench typically associated with organic fertilizers. It is the rare garden essential that manages to be both highly effective for serious growth and pleasant enough to use on your indoor houseplants.
$15.95
at
Pinetree Garden Seeds
Who it's for
- Gardeners seeking rapid nutrient uptake for healthier plant growth
- Eco-conscious growers focused on long-term soil health and vitality
- Organic farmers needing certified safe inputs for edible crops
Who should skip it
- Indoor gardeners sensitive to strong, lingering natural scents
- Users relying on fine-mist sprayers or automated irrigation systems
- Budget-focused gardeners preferring lower-cost synthetic alternatives
Performance breakdown
Nutrient Bioavailability
Cold-processing preserves essential proteins and oils for maximum plant absorption.
Application Versatility
Safe and effective for everything from delicate houseplants to outdoor vegetable patches.
Odor Profile
Advanced hydrolysis eliminates the typical pungent fish smell during indoor use.
Organic Integrity
OMRI listing guarantees strict adherence to high-standard organic gardening practices.
Concentrate Potency
Highly concentrated formula ensures a little goes a long way per application.
Ease of Mixing
Liquid consistency blends seamlessly with water for quick, mess-free preparation.
Key Specs
NPK Ratio
2-4-1
Package Size
36 oz (Quart)
Package Weight
2.25 lbs
Processing Method
Cold process
Odor Profile
No unpleasant odor
Fertilizer Type
Fish Hydrolysate
Fertilizer Source
Organic
Nitrogen Percentage
2.0%
Phosphorus Percentage
4.0%
Potassium Percentage
1.0%
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