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Fertilizers

A collection of the very best natural and biologically-based fertility sources available.

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  • Sold out
    Original price $105.00 - Original price $105.00
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    BioSafe TerraGrow - 4 lbs

    A powdered blend of scientifically selected beneficial bacterial and fungal spores to improve soil characteristics and plant stress tolerance. Terr...

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    Original price $105.00 - Original price $105.00
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  • Original price $262.00 - Original price $262.00
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    AgSil 16H Potassium Silicate Powder 52% SiO2 (0-0-32) 50 lb Bag

     AgSil helps plants to resist toxicity from phosphorous, manganese, aluminum and iron and increases tolerance to salt. AgSil also aids in resistanc...

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    Original price $262.00 - Original price $262.00
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  • Original price $35.00 - Original price $35.00
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    Iron Sulfate Powder 20% - 50 lb Bag

    Essential Iron 20%. Ferrous (Iron) Sulfate Heptahydrate. A soluble product that can be broadcast, side banded or foliar sprayed. Guaranteed Analysi...

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    Original price $35.00 - Original price $35.00
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  • Original price $125.00 - Original price $125.00
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    Copper Sulfate Powder - 50 lb Bag

    COPPER SULFATE- Chemical Analysis, Copper (Cu) 25.2% min, Arsenic (Ar) 10 ppm max, Cadmium (Cd) 15 ppm max, Lead (Pb) 50 ppm Copper Sulfate is a va...

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    Original price $125.00 - Original price $125.00
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  • Original price $85.00 - Original price $85.00
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    Zinc Sulfate Powder, Ag & Livestock- 50 lb Bag

    Zinc sulfate monohydrate powder, Guaranteed Analysis: Zinc(Zn) 35.5%, Water Soluble Zinc (Zn) 35.5%, Sulfur (S) 17%. Zinc sulfate powder can be app...

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    Original price $85.00 - Original price $85.00
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  • Original price $40.50 - Original price $40.50
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    Kmag or SulPoMag Granular (0-0-22+21S+11Mg) - 50 lb Bag

    Intrepid Trio brand is 100% natural Langbeinite, a unique mineral with three essential nutrients in every granule. Trio provides a long-lasting, re...

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    Original price $40.50 - Original price $40.50
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  • Original price $64.00 - Original price $64.00
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    Fish Bone Meal 40% Protein (4-14-0) - 50 lb Bag

    A marine-based alternative to traditional steamed bone meal and a great source of organic phosphorus and calcium (12%-17%). Derived from fresh cutt...

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    Original price $64.00 - Original price $64.00
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  • Original price $115.00 - Original price $115.00
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    Endomycorrhizal Inoculant (BEI) Micronized Powder - 5 lb Bag

    From BioOrganics this product contains a blend of eight top types of Endospores - Glomus aggregatum, G. clarum, G. deserticola, G. intraradices, G....

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    Original price $115.00 - Original price $115.00
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  • Original price $619.00 - Original price $619.00
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    Harmony Ag Organic Fertilizer (5-4-3) - 1 Ton Tote

    Harmony Ag Organic Fertilizer w/ 9% Calcium (5-4-3) - Made from 100% all natural composted poultry layer manure. All-purpose for vegetables, fruits...

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    Original price $619.00 - Original price $619.00
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  • Original price $18.50 - Original price $18.50
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    Gypsum Ida-Gro Pelletized - 50 lb Bag

    64% Calcium Sulfate, 22% Ca, 12% S. Supplemental Calcium for when soil pH does not need adjusted. Apply according to soil test - 50 lbs contains 1...

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    Original price $18.50 - Original price $18.50
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  • Original price $445.00 - Original price $445.00
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    Endomycorrhizal Inoculant (BEI) Micronized Powder - 25 lb Bag

    From BioOrganics this product contains a blend of eight top types of Endospores - Glomus aggregatum, G. clarum, G. deserticola, G. intraradices, G....

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    Original price $445.00 - Original price $445.00
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  • Original price $208.00 - Original price $208.00
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    Endomycorrhizal Inoculant (BEI) Micronized Powder - 10 lb Bag

    From BioOrganics this product contains a blend of eight top types of Endospores - Glomus aggregatum, G. clarum, G. deserticola, G. intraradices, G....

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    Original price $208.00 - Original price $208.00
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  • Original price $22.40 - Original price $22.40
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    Solubor 20.5% Boron (Sodium Borate) - 5 lb Bag

    Solubor® is manufactured to combine the highest concentration of boron with the maximum possible dispersion and solubility in water. As such, it ha...

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    Original price $22.40 - Original price $22.40
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  • Original price $12.50 - Original price $12.50
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    Coast of Maine Stonington Blend Organic Plant Food (5-2-4) - 4 lb Bag

    Coast of Maine Stonington Organic Plant Food (5–2–4) is an exceptional organic granular fertilizer made with lobster, crab, fish and kelp meal plus...

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    Original price $12.50 - Original price $12.50
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  • Original price $97.00 - Original price $97.00
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    Solubor 20.5% Boron (Sodium Borate) - 50 lb Bag

    Solubor® is manufactured to combine the highest concentration of boron with the maximum possible dispersion and solubility in water. As such, it ha...

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    Original price $97.00 - Original price $97.00
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  • Original price $51.00 - Original price $51.00
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    ALLGANIC Nitrogen Plus (15-0-2) 50 lb Bag

    Allganic® Nitrogen Plus is SQM's newest formulation and no longer Haz Mat. This micro pelletized natural sodium nitrate from Chile, contains 15% Ni...

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    Original price $51.00 - Original price $51.00
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  • Original price $1,003.00 - Original price $1,003.00
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    Crescendo Organic Fertilizer (8-2-2) - Full Pallet 40 x 50 lb

    An organic fertilizer derived from composted poultry layer manure, feather meal. All-purpose for vegetables, fruits, lawn and landscape. Slow relea...

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    Original price $1,003.00 - Original price $1,003.00
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    $1,003.00
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  • Original price $1,350.00 - Original price $1,350.00
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    Brown's Fish Fertilizer (2-3-1) - 275 Gallons

    Produced in Western North Carolina. This product is made from fresh water trout. Brown's is a fish hydrolysate and is produced using a cold process...

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    Original price $1,350.00 - Original price $1,350.00
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  • Original price $310.00 - Original price $310.00
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    $310.00
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    EM1 Microbial Inoculant Concentrate - 5 Gallon

    EM-1 Microbial Inoculant is a naturally-fermented, live microbial product. This is Dr Higa's Original Effective Microorganisms Concentrate. EM-1 Mi...

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    Original price $310.00 - Original price $310.00
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  • Original price $101.00 - Original price $101.00
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    $101.00
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    BioLink® All Purpose Liquid (3-3-3) Plus Micros - 2.5 Gallon

    A Westbridge ORGANIC BIOLINK® product that improves root and seedling vigor as well as flowering and fruit set. Can help with stressed plants. DERI...

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    Original price $101.00 - Original price $101.00
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  • Original price $52.50 - Original price $52.50
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    BioLink® Potassium Fertilizer Liquid (0-0-6) - 2.5 Gallon

    Potassium Fertilizer Liquid (0-0-6) - From ORGANIC BIOLINK® Contains 6.0% soluble potash essential for a vigorous root system, improved plant growt...

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    Original price $52.50 - Original price $52.50
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  • Original price $76.00 - Original price $76.00
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    BioLink® All Purpose Liquid (0-5-5) - 2.5 Gallon

    BioLink® All Purpose Liquid (0-5-5) - An all-purpose fertilizer for correction of phosphorus and potassium deficiencies. Can be applied to all crop...

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    Original price $76.00 - Original price $76.00
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  • Original price $31.50 - Original price $31.50
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    Alfalfa Pellets Organically Grown 17% Protein - 50 lb Bag

    Alfalfa Pellets are produced from standing organically grown alfalfa, which is mowed and chopped in the field, delivered to the dehydrating plant s...

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    Original price $31.50 - Original price $31.50
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  • Original price $465.00 - Original price $465.00
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    Maxicrop Soluble Seaweed Powder (0-0-17) - 44 lbs

    Seaweed is high in minerals that increase health and vigor of plants. Maxicrop is used as a supplement to your fertilizer program. It will benefit ...

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    Original price $465.00 - Original price $465.00
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  • Original price $292.00 - Original price $292.00
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    Maxicrop Soluble Seaweed Powder (0-0-17) - 22 lb

    Seaweed is high in minerals that increase health and vigor of plants. Maxicrop is used as a supplement to your fertilizer program. It will benefit ...

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    Original price $292.00 - Original price $292.00
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    Current price $292.00
  • Original price $79.70 - Original price $79.70
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    EM1 Microbial Inoculant Concentrate - 1 Gallon

    EM-1 Microbial Inoculant is a naturally-fermented, live microbial product. This is Dr Higa's Original Effective Microorganisms Concentrate. EM-1 Mi...

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    Original price $79.70 - Original price $79.70
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    Current price $79.70
  • Sold out
    Original price $27.00 - Original price $27.00
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    Greensand by Agrolift (0-0-1.4) - 50 lb Bag

    Read about alternatives to greensand in our blog.Greensand contains minerals and trace elements that improves the chemical, physical and biological...

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    Original price $27.00 - Original price $27.00
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  • Original price $12.75 - Original price $12.75
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    Coast of Maine Quoddy Lobster Compost - 1 cu ft Bag

    The original "seafood" compost. Made with chitin-rich lobster blended with peathumus and compost. The result is a dark-brown, complex soil that dra...

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    Original price $12.75 - Original price $12.75
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  • Original price $468.00 - Original price $468.00
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    Neptune's Harvest Liquid Fish Fertilizer (2-4-0.5) - 55 Gallons

    This hydrolyzed fish fertilizer comes from the nutrient rich North Atlantic Ocean. Made from fresh fish remains. It is made by a unique cold proces...

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    Original price $468.00 - Original price $468.00
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  • Original price $134.00 - Original price $134.00
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    Neptune's Harvest Liquid Fish Fertilizer (2-4-1) - 5 Gallons

    This hydrolyzed fish fertilizer comes from the nutrient rich North Atlantic Ocean. Made from fresh fish remains. It is made by a unique cold proces...

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    Original price $134.00 - Original price $134.00
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  • Original price $615.00 - Original price $615.00
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    Neptune's Harvest Liquid Fish & Seaweed Fertilizer (2-3-0.5) - 55 Gallons

    Made from hydrolyzed fish fertilizer from fresh fish remains from the North Atlantic Ocean. It also contains seaweed (Ascophyllum Nodosum). Can be ...

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    Original price $615.00 - Original price $615.00
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  • Original price $153.00 - Original price $153.00
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    Neptune's Harvest Liquid Fish & Seaweed Fertilizer (2-3-1) - 5 Gallons

    Made from hydrolyzed fish fertilizer from fresh fish remains from the North Atlantic Ocean. It also contains seaweed (Ascophyllum Nodosum). Can be ...

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    Original price $153.00 - Original price $153.00
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  • Original price $39.00 - Original price $39.00
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    CrabLife Flake 3-3-0 +19% Ca - 44 lb Bag

    By providing existing soil microbes with food and energy, CrabLife™ naturally and safely improves soil health by enhancing the beneficial microbial...

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    Original price $39.00 - Original price $39.00
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  • Original price $42.00 - Original price $42.00
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    Neptune's Harvest Liquid Fish & Seaweed Fertilizer (2-3-1) - 1 Gallon

    Made from hydrolyzed fish fertilizer from fresh fish remains from the North Atlantic Ocean. It also contains seaweed (Ascophyllum Nodosum). Can be ...

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    Original price $42.00 - Original price $42.00
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  • Original price $19.80 - Original price $19.80
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    Harmony Ag Organic Fertilizer (5-4-3) 9% Calcium - 50 lb

    Harmony Ag Organic Fertilizer w/ 9% Calcium (5-4-3) - Made from 100% all natural composted poultry layer manure. All-purpose for vegetables, fruits...

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    Original price $19.80 - Original price $19.80
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  • Original price $49.00 - Original price $49.00
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    Humic DG - 40 lb Bag

    The Andersons brand, this easy flow micro-pelletized Humic acid is derived from a high quality 70% leonardite, containing 35% fulvic and 35% humic ...

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    Original price $49.00 - Original price $49.00
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    Original price $28.69 - Original price $28.69
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    Sea-90 Soil Mineralizer+ - 50 lb Bag

    SEA-90 is a relatively high-moisture sea salt and as such it may naturally solidify. It will remain soluble and may require breaking up, similar to...

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    Original price $28.69 - Original price $28.69
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  • Original price $18.55 - Original price $18.55
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    BioChar Inoculant BioGranules™ by CharGrow® - 32 oz Jar

    CharGrow® BioGranules™ (also known as CharGrow Original Concentrate) is a biochar-based inoculant containing beneficial microorganisms. When added ...

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    Original price $18.55 - Original price $18.55
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    Original price $31.50 - Original price $31.50
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    Crescendo Organic Fertilizer (8-2-2) 5% Calcium - 50 lb Bag

    An organic fertilizer derived from composted poultry layer manure, feather meal. All-purpose for vegetables, fruits, lawn and landscape. Slow relea...

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    Original price $31.50 - Original price $31.50
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  • Original price $36.70 - Original price $36.70
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    Bokashi EM-1 - 5 lb Bag

    Bokashi is a naturally fermented product made by fermenting EM-1 Microbial Inoculant with Organic Rice Bran. It is primarily used in fermenting foo...

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    Original price $36.70 - Original price $36.70
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  • Original price $37.00 - Original price $37.00
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    Current price $37.00

    EM1 Microbial Inoculant Concentrate - 1 Qt

    EM-1 Microbial Inoculant is a naturally-fermented, live microbial product. This is Dr Higa's Original Effective Microorganisms Concentrate. EM-1 Mi...

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    Original price $37.00 - Original price $37.00
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    $37.00
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    Current price $37.00
  • Original price $400.00 - Original price $400.00
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    Current price $400.00

    Brown's Fish Fertilizer (2-3-1) - 55 Gallons

    Produced in Western North Carolina. This product is made from fresh water trout. Brown's is a fish hydrolysate and is produced using a cold process...

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    Original price $400.00 - Original price $400.00
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  • Original price $11.00 - Original price $11.00
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    Brown's Fish Fertilizer (2-3-1) - 1 Qt

    Produced in Western North Carolina. This product is made from fresh water trout. Brown's is a fish hydrolysate and is produced using a cold process...

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    Original price $11.00 - Original price $11.00
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  • Original price $18.25 - Original price $18.25
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    Redmond Agriculture Conditioner - 50 lb Bag

    A mineral from montmorillonite (hydrated sodium calcium aluminosilicate). It is used as a livestock feed additive to help them utilize their feed &...

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    Original price $18.25 - Original price $18.25
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  • Original price $699.00 - Original price $699.00
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    Current price $699.00

    VermaPlex Liquid Concentrate - 55 Gallon Drum

    A concentrated all natural microbial soil amendment as well as a plant probiotic liquid. Derived from Black Castings, and then inoculated with Endo...

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    Original price $699.00 - Original price $699.00
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  • Original price $19.50 - Original price $19.50
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    VermaPlex Liquid Concentrate - 1 Gallon

    A concentrated all natural microbial soil amendment as well as a plant probiotic liquid. Derived from Black Castings, and then inoculated with Endo...

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    Original price $19.50 - Original price $19.50
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  • Original price $56.50 - Original price $56.50
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    Allganic Soluble Potassium Sulfate SOP (0-0-52+S18%) - 50 lb Bag

    Potassium Sulfate Allganic Brand Water Soluble SOP (0-0-52-Sulfur 18%) This is a soluble SOP for crop production. It is best to apply according to ...

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    Original price $56.50 - Original price $56.50
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  • Original price $23.00 - Original price $23.00
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    Calcium Nitrate 15.5-0-0, 19% Ca - 50 lbs

    Calcium Nitrate is one of the most commonly used sources of nitrogen in agriculture today. Popular among bio-nutrient farmers. No sodium or chlorid...

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    Original price $23.00 - Original price $23.00
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Shipping Notice

Looks like your order might be big enough to ship on a pallet!

We have great pallet rates with our partner carriers and, if you're east of the Mississippi, you likely qualify for flat rates up to 2400 lbs. We can ship any size order but for orders of 5000 lbs and up (or if the website is only quoting UPS rates) you'll want to call us 800-540-9181 for the best shipping rate. Thank you!