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Fertilizers

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

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  • Original price $16.25 - Original price $16.25
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    Harmony Ag Organic Fertilizer (5-4-3) 9% Calcium - 40 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 $28.00 - Original price $28.00
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    Azomite Micronized Powder - 44 lb Bag

    This naturally mined, volcanic mineral has over 66 minerals and trace elements that are important for plant nutrition and growth. It improves deple...

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    Original price $28.00 - Original price $28.00
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  • Original price $28.00 - Original price $28.00
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    Azomite Granular - 44 lb Bag

    This naturally mined, volcanic mineral has over 66 minerals and trace elements that are important for plant nutrition and growth. It improves deple...

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    Original price $28.00 - Original price $28.00
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    Original price $71.49 - Original price $71.49
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    Thorvin Kelp - 50 lb Bag

    This is the best kelp on the market and it is certified organically grown. This Icelandic kelp is processed in a state of the art plant that is bui...

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    Original price $71.49 - Original price $71.49
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  • Original price $27.90 - Original price $27.90
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    Elemental Sulfur 90% - 50 lb Bag

    Pelletized sulfur is used to correct sulfur deficiencies or lower soil pH.  Our elemental sulfur will have a light green color. Excellent for Blueb...

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    Original price $27.90 - Original price $27.90
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  • Original price $26.75 - Original price $26.75
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    Magnesium Sulfate (Epsom Salt) - Technical Grade - 50 lb Bag (Agriculture)

    Magnesium Sulfate Epsom Salt Technical Grade - Mg 9.8%, S 12.9%. Quick acting Mg & S fertilizer. Can be used for a foliar application. Can be m...

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    Original price $26.75 - Original price $26.75
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  • Original price $39.60 - Original price $39.60
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    Bone Meal Steamed Granular (2-14-0) - 50 lb Bag

    Par-4 brand (2-14-0) is a steamed bone meal that is micro-pelletized for easy application. Bone meal is an excellent source of calcium at 20% and c...

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    Original price $39.60 - Original price $39.60
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  • Original price $13.70 - Original price $13.70
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    Boron 10% Granular - 10 lb Bag

    Boron 10 % Cameron Chemicals Brand - Pelletized and derived from Sodium Calcium Borate, Non-Acid forming, Product of Chile. Side dress plants or b...

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    Original price $13.70 - Original price $13.70
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  • Original price $31.95 - Original price $31.95
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    Alfalfa Meal Organically Grown for Plants or Animals (3-2-2) - 50 lb Bag

    As a fertilizer it has an analysis of (3-2-2 + minerals) and is a balanced fertilizer loaded with micro nutrients. The alfalfa plant has a deep roo...

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    Original price $31.95 - Original price $31.95
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  • Original price $42.10 - Original price $42.10
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    Endomycorrhizal Inoculant (BEI) Micronized Powder - 1.5 lb

    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 $42.10 - Original price $42.10
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  • Original price $43.00 - Original price $43.00
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    Feather Meal (13-0-0) - 50 lb Bag

    Feather meal, a by-product of poultry processing is cooked and sterilized under intense heat using steam pressure cookers then dried and ground int...

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    Original price $43.00 - Original price $43.00
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  • Original price $37.55 - Original price $37.55
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    Neptune's Harvest Liquid Fish Fertilizer (2-4-1) - 1 Gallon

    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 $37.55 - Original price $37.55
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  • Original price $78.10 - Original price $78.10
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    Brown's Fish Fertilizer (2-3-1) - 5 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 $78.10 - Original price $78.10
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  • Original price $13.45 - Original price $13.45
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    Elemental Sulfur 90% - 10 lb Bag

    Pelletized sulfur is used to correct sulfur deficiencies or lower soil pH.  Our elemental sulfur will have a light green color. Excellent for Blueb...

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    Original price $13.45 - Original price $13.45
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  • Original price $83.20 - Original price $83.20
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    BioLink® Cal Plus Liquid 6% - 2.5 Gallon

    From ORGANIC BIOLINK® this liquid Calcium is complexed with naturally fermented organic acids and is immediately available to plants. Calcium is es...

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    Original price $83.20 - Original price $83.20
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  • Original price $22.50 - Original price $22.50
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    Symphony Organic Fertilizer w/9% Ca (5-4-3) - 50 lb Bag

    Almost identical to Harmony but it comes from the USDA organic egg laying operation at the same NY farm that produces Harmony. What is in Harmony a...

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    Original price $22.50 - Original price $22.50
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  • Original price $45.70 - Original price $45.70
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    Actosol Organic Biostimulant - 2.5 Gallon

    An organic biostimulant activator which improves stress tolerance and water retention, enhances chelating of plant nutrients and stimulates root ma...

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    Original price $35.50 - Original price $35.50
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    Boron 10% Granular - 50 lb Bag

    Boron 10 % Cameron Chemicals Brand - Pelletized and derived from Sodium Calcium Borate, Non-Acid forming, Product of Chile. Side dress plants or b...

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    Original price $35.50 - Original price $35.50
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  • Original price $7.95 - Original price $7.95
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    Hi-Cal Lime Powder - 50 lb Bag

    This is a pulverized powder (calcium carbonate) - This high quality 100% pulverized limestone is high in calcium and very low in magnesium content....

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    Original price $7.95 - Original price $7.95
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  • Original price $46.00 - Original price $46.00
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    Potassium Sulfate Granular (SOP) (0-0-50+S17%) - 50 lb Bag

    Potassium is essential for a vigorous root system, plant growth, disease resistance, as well as fruit and vegetable quality. SOP granular is a natu...

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    Original price $46.00 - Original price $46.00
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  • Original price $24.35 - Original price $24.35
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    Rock Phosphate Pelletized (0-3-0) - 50 lb Bag

    Ida-Gro brand pelletized (0-3-0) - 20% total phosphate, 3% available phosphate and 20% calcium. Biological activity speeds release in compost or in...

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    Original price $24.35 - Original price $24.35
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  • Original price $85.00 - Original price $85.00
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    Copper Oxide 12% Granular - 50 lb Bag

    Regular grade – 260 SGN Prill size. 72% S & 12% Cu.  Apply according to your soil test results.  Product Recommendation Sheet  Organic Lette...

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    Original price $85.00 - Original price $85.00
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    Original price $79.00 - Original price $79.00
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    Blood Meal (12-0-0) - 50 lb Bag

    Blood Meal (12-0-0) - A natural source of nitrogen, blood meal is ideal for promoting lush and green vegetative growth. The high nitrogen is rapidl...

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    Original price $79.00 - Original price $79.00
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  • Original price $19.80 - Original price $19.80
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    Brown's Fish Fertilizer (2-3-1) - 1 Gallon

    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 $19.80 - Original price $19.80
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  • Original price $50.50 - Original price $50.50
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    Zinc Oxide 18% Granular - 50 lb Bag

    Regular Grade – 260 SGN Prill size. 65% S & 18% Zn. Apply according to your soil test results.   Organic Letter 

    Original price $50.50 - Original price $50.50
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  • Original price $31.50 - Original price $31.50
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    Iron Oxide 22% Granular - 50 lb Bag

    Regular Grade – 260 SGN Prill size. 55% S & 22% Fe.  Apply according to your soil test results.  Product Recommendation Sheet   

    Original price $31.50 - Original price $31.50
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  • Gypsum Pelletized Metric Ton

    64% Calcium Sulfate, 22% Ca, 12% S. Supplemental Calcium for when soil pH does not need adjusted. Apply according to soil test - 2200 lbs contains...

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  • Original price $10.65 - Original price $10.65
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    Hi-Cal Lime Pro Pelletized Pro Select Prills - 50 lb Bag

    Hi-Cal Lime Pelletized 50 lb (calcium carbonate) - This OMRI Listed Pelletized(SGN 250 prill) limestone is high in calcium and low in magnesium con...

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    Original price $10.65 - Original price $10.65
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    Coast of Maine Schoodic Blend Compost - 1 Cu Ft Bag

    A dark, rich soil made from carefully composted cow manure and peat humus. The cow manure for the Schoodic Blend, that is composted in Maine, comes...

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    Original price $10.65 - Original price $10.65
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  • Original price $39.50 - Original price $39.50
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    Manganese Oxide 15% Granular - 50 lb Bag

    Regular Grade – 260 SGN Prill size. 65% S & 15% Mn. Apply according to your soil test results. Organic Letter  

    Original price $39.50 - Original price $39.50
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  • Original price $15.60 - Original price $15.60
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    Aragonite Raw (0-0-0-Ca 38%) - 50 lb Bag

    Aragonite Raw (0-0-0-97 Ca) - A sea calcium that is high in calcium and low in magnesium. 97% calcium carbonate and calcium silicate combined; 33%m...

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    Original price $15.60 - Original price $15.60
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  • Original price $30.40 - Original price $30.40
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    Cottonseed Meal (6-2-1) - 50 lb Bag

    Use for acid-loving plants like blueberries and azaleas because of its low pH. Note for an organic acid loving fertilizer: We also recommend using ...

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    Original price $30.40 - Original price $30.40
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  • Sale Sale
    Original price $880.00
    Original price $880.00 - Original price $880.00
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    Current price $690.00
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    Worm Castings Mountain Gate Organics - 1 yd Sling

    These worm castings are from Mountain Gate Organics out of Rockingham, VA and go through a multi-screening process to eliminate worm eggs without ...

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    Original price $880.00
    Original price $880.00 - Original price $880.00
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    Original price $48.50 - Original price $48.50
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    CrabLife Powder 3-3-0 +19% Ca - 20 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 $48.50 - Original price $48.50
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  • Original price $21.30 - Original price $21.30
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    Thorvin Kelp Minerals for Animals OG - 3 lb Bag

    This is the best kelp on the market and it is certified organically grown. This Icelandic kelp is processed in a state of the art plant that is bui...

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    Original price $21.30 - Original price $21.30
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  • Original price $197.50 - Original price $197.50
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    Grower’s Secret Nitrogen (16-0-0)- 50 lbs

    Provides a rich source of nitrogen for nitrogen loving plants. Use to help plants grow quickly, and to improve plant quality and appearance. Grower...

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    Original price $197.50 - Original price $197.50
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  • Original price $89.00 - Original price $89.00
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    Nature Safe 7-7-7 Soluble Powder - 50 lb Bag

    NatureSafe Triple 7 (7-7-7) Dry Flowable is a fully soluble general purpose fertilizer from corn steep liquor.  The 6.5% water soluble nitrogen pro...

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    Original price $89.00 - Original price $89.00
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  • Original price $24.35 - Original price $24.35
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    Vansil W-20 Wollastonite (Ca₂O₄Si) - 50 lb Bag

    Wollastonite is a natural calcium silicate mineral and is unique among soil amendments as a source of silicon and carbon-neutral calcium. VANSIL wo...

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    Original price $24.35 - Original price $24.35
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  • Original price $60.85 - Original price $60.85
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    Nature's Kelp from Thorvin 50 lb

     Nature’s Kelp from Thorvin is a certified organic Ascophyllum Nodosum dried kelp that is a rich source of natural minerals which has been used wor...

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    Original price $60.85 - Original price $60.85
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  • Original price $29.50 - Original price $29.50
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    Zeolite Soil Amendment - 50 lb Bag

    Zeolite has superior absorption and adsorption properties and thereby reduces water and fertilizer costs by retaining beneficial nutrients and mois...

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  • Original price $10.65 - Original price $10.65
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    Dolomitic Lime Pro-Select Prill - 50 lb Bag

    Dolomitic Lime Pelletized (50 lb) - This OMRI listed pelletized limestone is high in Calcium (Ca) and Magnesium (Mg). Superior to calcitic lime whe...

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    Original price $10.65 - Original price $10.65
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  • Original price $19.50 - Original price $19.50
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    Kenkashi Bokashi - 2.5 Liter Box

    A microbe-rich compound which helps to accelerate decomposition through the introduction of fermenting bacteria. Contains endo and ecto mycorrhizal...

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    Original price $19.50 - Original price $19.50
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  • Original price $58.00 - Original price $58.00
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    KenKashi Liquid Concentrate - 1 Gallon

    A liquid probiotic for plants, soil and compost. A unique and beneficial living culture of microbes. Diluted 1:20 (5%) or activated (pitch into a v...

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    Original price $58.00 - Original price $58.00
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  • Original price $28.00 - Original price $28.00
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    KenKashi Liquid Concentrate - 1 Qt

    A liquid probiotic for plants, soil and compost. A unique and beneficial living culture of microbes. Diluted 1:20 (5%) or activated (pitch into a v...

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    Original price $28.00 - Original price $28.00
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  • Original price $23.20 - Original price $23.20
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    Mikrobs Microbial Superpack - 8 oz Bag

    Mikrobs is an organic microbial soil amendment/bioinoculant for plant and root growth stimulation that also encourages preventative resistance agai...

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    Original price $23.20 - Original price $23.20
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  • Original price $75.10 - Original price $75.10
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    SEA-CROP® Ocean Mineral Concentrate - 2.5 Gallon

    Mineralize your crops with an inexpensive concentrated seawater! SEA-CROP® is composed of organic matter and minerals in ionic liquid form derived ...

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    Original price $75.10 - Original price $75.10
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  • Original price $26.40 - Original price $26.40
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    Biomin® Booster 126 Amino Acid Chelated Minerals - Gallon

    A mixture of the amino acid encapsulated micronutrients magnesium, boron, copper, iron, manganese, and zinc. Created using an encapsulation of thes...

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    Original price $26.40 - Original price $26.40
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  • Original price $21.80 - Original price $21.80
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    Fulmax 3% Liquid Fulvic Acid - 1 Gallon

    Fulmax® contains fulvic acid extracted from leonardite. It can be applied as a soil and/or foliar application to improve nutrient availability, sti...

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    Original price $21.80 - Original price $21.80
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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!