Skip to content
🐓🐓🐓 A bag of fertilizer for under $10?!? - Come and get it! 🐓🐓🐓
🐓🐓🐓 A bag of fertilizer for under $10?!? - Come and get it! 🐓🐓🐓

Fertilizers

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

Similar Categories

Soil Amendments

Poultry Manure

Humates

Liquid/Soluble

Microbial
    Thorvin Kelp - 50 lb Bag - Seven Springs Farm Supply
    $105.60 - $105.60
    $105.60
    $105.60 - $105.60
    $105.60

    Thorvin Kelp - 50 lb Bag

    Thorvin Kelp is a single sourced kelp from Icelandic waters and is certified organic and OMRI-listed. The kelp is processed at a low temperature in...

    View full details
    $105.60 - $105.60
    $105.60
    $105.60 - $105.60
    $105.60
    Magnesium Sulfate (Epsom Salt) - Technical Grade - 50 lb Bag (Agriculture) - Seven Springs Farm Supply
    $27.60 - $27.60
    $27.60
    $27.60 - $27.60
    $27.60

    Magnesium Sulfate (Epsom Salt) - Technical Grade - 50 lb Bag (Agriculture)

    Magnesium Sulfate (Epsom Salt) Technical Grade - Mg 9.8%, S 12.9%. Quick acting magnesium & sulfur fertilizer. It can be used for a soil or fol...

    View full details
    $27.60 - $27.60
    $27.60
    $27.60 - $27.60
    $27.60
    Endomycorrhizal Inoculant (BEI) Micronized Powder - 1.5 lb - Seven Springs Farm Supply
    $44.10 - $44.10
    $44.10
    $44.10 - $44.10
    $44.10

    Endomycorrhizal Inoculant (BEI) Micronized Powder - 1.5 lb

    From BioOrganics this product contains a blend of nine species of Endomycorrhizal spores: Glomus aggregatum, G. etunicatum, G. intraradices, G. mos...

    View full details
    $44.10 - $44.10
    $44.10
    $44.10 - $44.10
    $44.10
    Neptune's Harvest Liquid Fish Fertilizer (2 - 4 - 1) - 1 Gallon - Seven Springs Farm Supply
    $42.20 - $42.20
    $42.20
    $42.20 - $42.20
    $42.20

    Neptune's Harvest Liquid Fish Fertilizer (2-4-1) - 1 Gallon

    < This hydrolyzed fish fertilizer comes from the nutrient rich North Atlantic. It is made from fresh fish remains by a unique cold process that ...

    View full details
    $42.20 - $42.20
    $42.20
    $42.20 - $42.20
    $42.20
    True Organic Prilled Sulfur 99% - 5 lb Bag - Seven Springs Farm Supply
    Save 18% Save %
    $9.75
    $9.75 - $9.75
    $9.75
    $7.95
    $7.95 - $7.95
    $7.95

    True Organic Prilled Sulfur 99% - 5 lb Bag

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

    View full details
    $9.75
    $9.75 - $9.75
    $9.75
    $7.95
    $7.95 - $7.95
    $7.95
    Save 18% Save %
    BioLink® Cal Plus Liquid 6% - 2.5 Gallon - Seven Springs Farm Supply
    $99.40 - $99.40
    $99.40
    $99.40 - $99.40
    $99.40

    BioLink® Cal Plus Liquid 6% - 2.5 Gallon

    BioLink Cal Plus Liquid 6% is a liquid calcium fertilizer complexed with an organic acid, making it immediately available to plants. Use as a folia...

    View full details
    $99.40 - $99.40
    $99.40
    $99.40 - $99.40
    $99.40
    Actosol Organic Biostimulant - 2.5 Gallon - Seven Springs Farm Supply
    $47.80 - $47.80
    $47.80
    $47.80 - $47.80
    $47.80

    Actosol Organic Biostimulant - 2.5 Gallon

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

    View full details
    $47.80 - $47.80
    $47.80
    $47.80 - $47.80
    $47.80
    Boron 10% Granular - 50 lb Bag - Seven Springs Farm Supply
    $37.10 - $37.10
    $37.10
    $37.10 - $37.10
    $37.10

    Boron 10% Granular - 50 lb Bag

    Boron 10 % Cameron Chemicals Brand is pelletized and is derived from ulexite (sodium calcium borate). Use it as part of a fertility plan, broadcast...

    View full details
    $37.10 - $37.10
    $37.10
    $37.10 - $37.10
    $37.10
    Hi - Cal Lime Powder - 50 lb Bag - Seven Springs Farm Supply
    $11.75 - $11.75
    $11.75
    $11.75 - $11.75
    $11.75

    Hi-Cal Lime Powder - 50 lb Bag

    High quality 100% pulverized limestone is high in calcium and very low in magnesium content. Elemental calcium is 38%. Calcium carbonate equivalent...

    View full details
    $11.75 - $11.75
    $11.75
    $11.75 - $11.75
    $11.75
    Brown's Fish Fertilizer (2 - 3 - 1) - 1 Gallon - Seven Springs Farm Supply
    $22.60 - $22.60
    $22.60
    $22.60 - $22.60
    $22.60

    Brown's Fish Fertilizer (2-3-1) - 1 Gallon

    Produced in Western North Carolina, this product is made from fresh water fish. Brown's Fish Fertilizer is a fish hydrolysate produced by a cold en...

    View full details
    $22.60 - $22.60
    $22.60
    $22.60 - $22.60
    $22.60
    NutraSoft OP Gypsum 2000 lb Tote - Seven Springs Farm Supply
    $463.50 - $463.50
    $463.50
    $463.50 - $463.50
    $463.50

    NutraSoft OP Gypsum 2000 lb Tote

    64% Calcium Sulfate, 22% Ca, 12% S. Supplemental Calcium for when soil pH does not need adjusted. Apply according to soil test - 2000 lbs contains ...

    View full details
    $463.50 - $463.50
    $463.50
    $463.50 - $463.50
    $463.50
    Coast of Maine Schoodic Blend Compost - 1 cu ft Bag - Seven Springs Farm Supply
    $11.50 - $11.50
    $11.50
    $11.50 - $11.50
    $11.50

    Coast of Maine Schoodic Blend Compost - 1 cu ft Bag

    A dark, rich soil made from carefully composted cow manure and sphagnum peat moss. The cow manure for the Schoodic Blend comes from local beef and ...

    View full details
    $11.50 - $11.50
    $11.50
    $11.50 - $11.50
    $11.50
    Aragonite Raw (0 - 0 - 0 - Ca 38%) - 50 lb Bag - Seven Springs Farm Supply
    $16.30 - $16.30
    $16.30
    $16.30 - $16.30
    $16.30

    Aragonite Raw (0-0-0-Ca 38%) - 50 lb Bag

    Aragonite Raw (0-0-0-38 Ca) - A feed-grade calcium carbonate from a marine source that is high in calcium, low in magnesium, and contains trace mic...

    View full details
    $16.30 - $16.30
    $16.30
    $16.30 - $16.30
    $16.30
    Worm Castings Mountain Gate Organics - 1 cu yd Sling - Seven Springs Farm Supply
    $665.00 - $665.00
    $665.00
    $665.00 - $665.00
    $665.00

    Worm Castings Mountain Gate Organics - 1 cu 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 t...

    View full details
    $665.00 - $665.00
    $665.00
    $665.00 - $665.00
    $665.00
    Thorvin Kelp - 3 lb Bag - Seven Springs Farm Supply
    $21.90 - $21.90
    $21.90
    $21.90 - $21.90
    $21.90

    Thorvin Kelp - 3 lb Bag

    Thorvin Kelp is a single sourced kelp from Icelandic waters and is certified organic and OMRI-listed. The kelp is processed at a low temperature in...

    View full details
    $21.90 - $21.90
    $21.90
    $21.90 - $21.90
    $21.90
    Grower’s Secret Nitrogen (16 - 0 - 0) - 50 lbs - Seven Springs Farm Supply
    Sold out
    $242.50 - $242.50
    $242.50
    $242.50 - $242.50
    $242.50

    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...

    View full details
    $242.50 - $242.50
    $242.50
    $242.50 - $242.50
    $242.50
    Sold out
    Vansil W - 20 Wollastonite (Ca₂O₄Si) - 50 lb Bag - Seven Springs Farm Supply
    $25.90 - $25.90
    $25.90
    $25.90 - $25.90
    $25.90

    Vansil W-20 Wollastonite (Ca₂O₄Si) - 50 lb Bag

    Wollastonite is a natural calcium silicate mineral. VANSIL wollastonite is sourced domestically and is not chemically treated. Because it is milled...

    View full details
    $25.90 - $25.90
    $25.90
    $25.90 - $25.90
    $25.90
    Nature's Kelp from Thorvin - 50 lb Bag - Seven Springs Farm Supply
    Sold out
    $102.50 - $102.50
    $102.50
    $102.50 - $102.50
    $102.50

    Nature's Kelp from Thorvin - 50 lb Bag

    Nature’s Kelp from Thorvin is a certified organic dried kelp (Ascophyllum Nodosum) from the North Atlantic that is a rich source of trace minerals....

    View full details
    $102.50 - $102.50
    $102.50
    $102.50 - $102.50
    $102.50
    Sold out
    Zeolite Soil Amendment - 50 lb Bag - Seven Springs Farm Supply
    $29.95 - $29.95
    $29.95
    $29.95 - $29.95
    $29.95

    Zeolite Soil Amendment - 50 lb Bag

    Zeolite has superior absorption capabilities with a coarse sand texture (14 - 40 mesh). In soils, it can increase cation exchange capacity, water-h...

    View full details
    $29.95 - $29.95
    $29.95
    $29.95 - $29.95
    $29.95
    Kenkashi Bokashi - 0.5 lb Box - Seven Springs Farm Supply
    $20.70 - $20.70
    $20.70
    $20.70 - $20.70
    $20.70

    Kenkashi Bokashi - 0.5 lb Box

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

    View full details
    $20.70 - $20.70
    $20.70
    $20.70 - $20.70
    $20.70
    KenKashi Liquid Concentrate - 1 Gallon - Seven Springs Farm Supply
    Sold out
    $61.60 - $61.60
    $61.60
    $61.60 - $61.60
    $61.60

    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...

    View full details
    $61.60 - $61.60
    $61.60
    $61.60 - $61.60
    $61.60
    Sold out
    KenKashi Liquid Concentrate - 1 Qt - Seven Springs Farm Supply
    Sold out
    $29.70 - $29.70
    $29.70
    $29.70 - $29.70
    $29.70

    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...

    View full details
    $29.70 - $29.70
    $29.70
    $29.70 - $29.70
    $29.70
    Sold out
    Mikrobs Microbial Superpack - 8 oz Bag - Seven Springs Farm Supply
    $26.90 - $26.90
    $26.90
    $26.90 - $26.90
    $26.90

    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...

    View full details
    $26.90 - $26.90
    $26.90
    $26.90 - $26.90
    $26.90
    SEA - CROP® Ocean Mineral Concentrate - 2.5 Gallon - Seven Springs Farm Supply
    Save 18% Save %
    $90.00
    $90.00 - $90.00
    $90.00
    $73.50
    $73.50 - $73.50
    $73.50

    SEA-CROP® Ocean Mineral Concentrate - 2.5 Gallon

    SEA-CROP® is a concentrate that contains all of the minerals of seawater in concentrated form with the sodium chloride 95% reduced and contains 3% ...

    View full details
    $90.00
    $90.00 - $90.00
    $90.00
    $73.50
    $73.50 - $73.50
    $73.50
    Save 18% Save %