Organic Nitrogen Fertilizers
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Corn Steep
Ferti-Corn Steep powder 6-7-7 helps promote the natural growth of plants with nitrogen, phosphorous...
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Crab Shell Meal Fertilizer
CRAB & LOBSTER SHELL 5-3-0Neptune’s Harvest Organic Crab & Lobster Shell is...
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Soluble Organic Nitrogen
Sustainable Harvest Starts with Organic Nitrogen Fertilizers Boost your garden with Certified...
Boost Your Crops with Organic Nitrogen Fertilizers
Custom Hydro carries a full selection of OMRI-listed and naturally derived organic nitrogen fertilizers for farms, gardens, and hydroponic systems. Whether you need fast-acting nitrogen or slow-release soil-building options, we have you covered.
Fast-Release Nitrogen Sources
- Ferti-Nitro Plus 13-0-0 (Soybean Protein Hydrolysate)
- Ferti-Corn Steep Soluble Powder 6-7-7
- Blood Meal
- Feather Meal
Slow-Release & Soil-Building Options
- Alfalfa Meal
- Bat Guano
- Seabird Guano
All products are suitable for certified organic production. Shop with confidence — fast nationwide shipping available.
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Ferti-Corn Steep Powder 6-7-7 Organic NPK - 4...Regular price $19.68Regular priceUnit price $4.92 per lb
$0.00Sale price $19.68 -
Ferti-Nitro Plus Organic Nitrogen 13.62-0-0 - 50 lbRegular price $322.62Regular priceUnit price $6.45 per lb$401.80Sale price $322.62Grower Price -
Ferti-Nitro Plus Organic Nitrogen 13.62-0-0 - 1 lbRegular price $16.22Regular priceUnit price $16.22 per lb
$0.00Sale price $16.22 -
Ferti-Corn Steep Powder 6-7-7 Organic NPK - 50...Regular price $139.80Regular priceUnit price $2.80 per lb$210.25Sale price $139.80Grower Price -
Ferti-Corn Steep Powder 6-7-7 Organic NPK - 20...Regular price $71.75Regular priceUnit price $3.59 per lb$100.00Sale price $71.75Grower Price -
Ferti-Corn Steep Powder 6-7-7 Organic NPK - 1...Regular price $9.38Regular priceUnit price $9.38 per lb
$0.00Sale price $9.38 -
Nature's Source 3-1-1 Organic Fertilizer 4.7 gallonRegular price $64.10Regular priceUnit price per$80.00Sale price $64.10Grower Price -
Sigma 5-3-2 Bio Organic Fertilizer 50 lbRegular price $25.71Regular priceUnit price per$38.66Sale price $25.71Grower Price -
AgriHusta Organic Liquid Fertilizer NPK 3-0-9 (Potassium Nitrate)...Regular price $67.00Regular priceUnit price $12.69 per gal
$109.84Sale price $67.00Grower Price -
Fertilome Fish Emulsion Fertilizer 5-1-1 ONE GALLONRegular price $31.15Regular priceUnit price per$38.88Sale price $31.15Grower Price -
FISH SEAWEED BLEND GALLON 2-3-1Regular price $48.62Regular priceUnit price per$73.10Sale price $48.62Grower Price -
Pro Powders Fish Amino 85 | Deep-Sea Fish...Regular price From $21.28Regular priceUnit price per
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Sigma 6-2-6 Bio Fine With Value-Added Biologicals |...Regular price $38.68Regular priceUnit price $0.77 per lb
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Sigma 4-4-4 Bio Fine Grade With Value-Added Biologicals...Regular price $30.06Regular priceUnit price $0.60 per lb
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Sigma 2-4-2 Bio With Value-Added Biologicals | 50...Regular price $26.20Regular priceUnit price $0.52 per lb
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