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Soil Amendments

Mixed and single-source macro and micro-nutrients.

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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 $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 $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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  • 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 $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 $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 $19.50 - Original price $19.50
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    Aqua Power Liquid Fish Fertilizer (5-1-1) - 1 Gallon

    This liquid fish concentrate is filtered down to an 80 mesh screen. The nitrogen in Aqua Power™ is water soluble and available to plants immediatel...

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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 $39.00 - Original price $39.00
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    Nature Safe N & K Fertilizer (9-0-9) 50 lb Bag

    This coarse general use fertilizer is derived from feather meal, meat meal, blood meal and sulfate of potash. This product contains 8% slowly avail...

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    Original price $39.00 - Original price $39.00
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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 $54.00 - Original price $54.00
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    Granubor 15% Boron (Sodium Borate) - 50 lb Bag

    Granubor® is the only pure, 100% water soluble micronutrient that is engineered to meet crops’ boron demands during the growing season. Other produ...

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    Original price $54.00 - Original price $54.00
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  • Original price $21.50 - Original price $21.50
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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 $21.50 - Original price $21.50
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    Original price $65.00 - Original price $65.00
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    Neem Seed Meal (4-3-1.6) - 44 lb Bag

    Made from neem cakes that were pressed for neem oil extraction. Has dual activity as a fertilizer and a pest repellent.  Mixes well with other fert...

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    Original price $65.00 - Original price $65.00
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  • Original price $310.00 - Original price $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 $39.50 - Original price $39.50
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    Manganese Oxide 15% Granular - 50 lb Bag

    Tiger Micronutrient brand, this manganese is the Regular Grade – 260 SGN Prill size. 65% S & 15% Mn. Derived from Manganese Oxide.  Apply accor...

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    Original price $39.50 - Original price $39.50
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  • Original price $15.00 - Original price $15.00
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    Wakefield HERO BioChar and Compost Blend - 1 cu. ft. Bag

    Compost HERO biochar blend is made with premium Wakefield BioChar, organic compost and mycorrhizal fungi to create a superior soil conditioner. The...

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    Original price $15.00 - Original price $15.00
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  • Original price $31.50 - Original price $31.50
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    Iron Oxide 22% Granular - 50 lb Bag

    This Tiger Sul brand micronutrient product is the Regular Grade – 260 SGN Prill size. 55% S & 22% Fe, derived from Iron Oxide.  Apply according...

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    Original price $31.50 - Original price $31.50
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  • Original price $15.90 - Original price $15.90
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    Mikro-Root - 2 oz Bag

    Trichoderma harzianum and T. viride (two root-colonizing, beneficial fungi) help solubilize phosphate and create bigger, healthier and disease-free...

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    Original price $15.90 - Original price $15.90
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  • Sale Sale
    Original price $880.00
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    Worm Castings Mountain Gate Organics - 1250lb 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
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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 $400.00 - Original price $400.00
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    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 $10.99 - Original price $10.99
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    Mikro-Myco - 2 oz Bag

    18 species of beneficial soil microbes together in one superpack! Includes endo and ectomycorrhizae (Glomus, Rhizopogon, Pisolithus and Scleroderma...

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    Original price $10.99 - Original price $10.99
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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 $50.50 - Original price $50.50
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    Zinc Oxide 18% Granular - 50 lb Bag

    Tiger Micronutrient brand, this Zinc is the Regular Grade – 260 SGN Prill size. 65% S & 18% Zn. Derived from Zinc Oxide.  Apply according to yo...

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    Original price $50.50 - Original price $50.50
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  • Original price $144.48 - Original price $144.48
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    ProPhos (0-20-0) - 3.5 gal

    Made from rock phosphate. 20% P2O5. For foliar or drip applications. 3.5 gal contains 11.3 lbs of available P2O5. Label SDS WSDA CDFA Eco...

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    Original price $144.48 - Original price $144.48
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  • Original price $85.00 - Original price $85.00
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    Copper Oxide 12% Granular - 50 lb Bag

    This Tiger brand micronutrient is the regular grade – 260 SGN Prill size. 72% S & 12% Cu. Derived from Copper Oxide Apply according to your so...

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    Original price $85.00 - Original price $85.00
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  • Original price $29.00 - Original price $29.00
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    Black Gypsum DG - 50lb Bag

    Black Gypsum DG granules are homogenous and combine natural gypsum and humic substances to form a unique bio-amendment. DG Technology creates a dus...

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    Original price $29.00 - Original price $29.00
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  • Original price $12.75 - Original price $12.75
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    NutraSoft OP Gypsum - 40lb Bag

    NutraSoft OP Gypsum is an OMRI listed organic, granulated gypsum soil amendment for lawns and gardens. Applying NutraSoft OP Gypsum is will loosen ...

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    Original price $12.75 - Original price $12.75
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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 $9.89 - Original price $9.89
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    Azomite Micronized - 5 lb Box

    Down To Earth’s AZOMITE is a natural mineral product mined in central Utah. This unique deposit was formed when an ancient volcano erupted and its ...

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    Original price $9.89 - Original price $9.89
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  • Original price $25.90 - Original price $25.90
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    Mikro-BW Bloom Wizard - 8 fl oz

    This blend contains Bacillus subtilis and B. amyloliquefaciens, both root colonizers that promote growth and protect plants, as well as soluble sea...

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  • Original price $115.00 - Original price $115.00
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    Seven Springs Farm Supply Gift Card

    Looking for a gift for the farmer or grower in your life? Look no further! Let them pick exactly what they need for their growing season with our g...

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    Original price $115.00 - Original price $115.00
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  • Original price $615.00 - Original price $615.00
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    $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 ...

    View full details
    Original price $615.00 - Original price $615.00
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    $615.00
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  • Original price $11.49 - Original price $11.49
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    Langbeinite - K-Mag (0-0-22) - 5 lb Box

    Down To Earth’s Langbeinite 0-0-22 is a naturally mined crystalline mineral that supplies the water-soluble sulfate form of three vital plant nutri...

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    Original price $11.49 - Original price $11.49
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  • Original price $16.95 - Original price $16.95
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    Blood Meal (12-0-0) - 5 lb Box

    A readily available source of organic nitrogen, Down To Earth’s Blood Meal 12-0-0 is great for heavy feeders, like corn, spinach, broccoli and leaf...

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    Original price $16.95 - Original price $16.95
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  • Original price $190.00 - Original price $190.00
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    BlueGold Nitrogen (14-0-0) - 44 lb Bag

    BlueGold® Nitrogen has been micronized so that more of the Nitrogen is available to the plant. It is 100% Water-Soluble and is free of harsh odors....

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    Original price $190.00 - Original price $190.00
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  • Original price $17.00 - Original price $17.00
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    Terra Alba Gypsum - Soluble Powder - 50 lb bag

    Extremely pure, solution-grade Calcium Sulfate. Apply according to soil test recommendations. Spec Sheet SDS

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  • Original price $115.00 - Original price $115.00
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    Biolink Moly4 - 2.5 gallon

    A liquid molybdenum complexed with amino acids for improved availability and uptake by plants. It provides a quick boost to plants under nutrient s...

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    Original price $115.00 - Original price $115.00
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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 $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 $12.00 - Original price $12.00
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    Bone Meal (3-15-0) - 5 lb Box

    A wonderful source of phosphorous and calcium for flowering plants, trees and ornamentals, Down To Earth™ Bone Meal 3-15-0 is also recognized as th...

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    Original price $12.00 - Original price $12.00
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  • Original price $97.90 - Original price $97.90
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    TRIGGRR (0-0-1) - 1 Gal

    Liquid concentrate derived from Kelp and plant extracts. Contains 0.45% Humic Acid. For use as a foliar, soil, transplant, container or seed treatm...

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    Original price $97.90 - Original price $97.90
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  • Original price $14.90 - Original price $14.90
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    Mikro-H2O - 4 oz Bag

    High concentrations of Bacillus subtilis and B. amyloliquefaciens create a biofilm in the rhizosphere to help plants retain water and better manage...

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    Original price $14.90 - Original price $14.90
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  • Original price $40.00 - Original price $40.00
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    Cal-Mag Amplified (2-0-0) - 1 Gal

    2% N, 3.5% Ca, 1% Mg, 0.1% Fe. Provides supplemental Calcium and Magnesium. Especially popular with container gardeners. Apply 1# per plant every 4...

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    Original price $40.00 - Original price $40.00
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  • Gypsum Ida-Gro 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 $260.00 - Original price $260.00
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    K-Mate SG (0-0-12) - 50lb Bag

    K-Mate SG is a highly concentrated organic product that is designed to be dissolved into water to make your own liquid humate solution. Because of ...

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    Original price $260.00 - Original price $260.00
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  • Original price $73.44 - Original price $73.44
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    ProCal (3-0-0) plus 20% Ca - 8 lbs

    Derived from soy protein and calcium carbonate. 3% N provides a carrier for the calcium to ensure distribution in the plant. 8 lbs contains 0.24 lb...

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    Original price $73.44 - Original price $73.44
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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!