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🌱 Check out our NEW Seven Springs Fertilizer Blends! 🌱
🌱 Check out our NEW Seven Springs Fertilizer Blends! 🌱

Fertilizers

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

Similar Categories

Soil Amendments

Poultry Manure

Humates

Liquid/Soluble

Microbial
    A plastic jug of Pacific Gro's SeaPhos Organic seafood fertilizer, filled with a light brown liquid, set against a rustic wooden plank background.
    $32.50 - $32.50
    $32.50
    $32.50 - $32.50
    $32.50

    SeaPhos (1.7-6-0) - 1 Gallon

    Cold-processed fish protein hydrolysate made from salmon, plus micronized fish bone and phosphoric acid. Screened to 165 mesh (90 micron) for use i...

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    $32.50 - $32.50
    $32.50
    $32.50 - $32.50
    $32.50
    A white plastic jug of Tidal Grow Seaphos Organic 2-6-0 liquid fertilizer with a prominent red label, set against a rustic wooden plank background.
    $58.50 - $58.50
    $58.50
    $58.50 - $58.50
    $58.50

    SeaPhos (1.7-6-0) - 2.5 Gallon

    Cold-processed fish protein hydrolysate made from salmon, plus micronized fish bone and phosphoric acid. Screened to 165 mesh (90 micron) for use i...

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    $58.50 - $58.50
    $58.50
    $58.50 - $58.50
    $58.50
    A large clear plastic bag filled with dark charcoal-colored Ferti Organic Soluble Seaweed Extract Plus, featuring a white and blue label, set against a rustic wooden plank background.
    $45.00 - $45.00
    $45.00
    $45.00 - $45.00
    $45.00

    Ferti-Organic Soluble Seaweed (4.44-1-16) - 5 lb

    Premium soluble seaweed (ascophyllum nodosum) for use in foliar sprays, irrigation, and transplant water. Provides highly bio-available nutrients a...

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    $45.00 - $45.00
    $45.00
    $45.00 - $45.00
    $45.00
    A large white plastic bag of Ferti Organic Soluble Seaweed Extract Plus, placed flat on a light brown wooden plank surface.
    $345.00 - $345.00
    $345.00
    $345.00 - $345.00
    $345.00

    Ferti-Organic Soluble Seaweed (4.44-1-16) - 50 lb

    Premium soluble seaweed (ascophyllum nodosum) for use in foliar sprays, irrigation, and transplant water. Provides highly bio-available nutrients a...

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    $345.00 - $345.00
    $345.00
    $345.00 - $345.00
    $345.00
    A white plastic bottle of CropSIL with a red cap, standing on a wooden surface against a wooden plank background.
    $95.50 - $95.50
    $95.50
    $95.50 - $95.50
    $95.50

    CropSIL - 1 Liter

    Silicon is an important element that helps strengthen plant cell walls, improves plant nutrient and water management, increases stress tolerance an...

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    $95.50 - $95.50
    $95.50
    $95.50 - $95.50
    $95.50
    A white tote of material on a pallet.
    Sold out
    $1,441.00 - $1,441.00
    $1,441.00
    $1,441.00 - $1,441.00
    $1,441.00

    Crab Meal (4-4-0) 18% Ca - 2000 lb

    Made from 100% Blue Crab with no other additives. Crab Meal is an excellent source of NPK, Calcium, (18%) and micro nutrients. The high levels of c...

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    $1,441.00 - $1,441.00
    $1,441.00
    $1,441.00 - $1,441.00
    $1,441.00
    Sold out
    A large brown paper bag of Sea Life Kelp Meal supplement lies flat on a wooden plank surface. The front of the bag features a white, blue, and green product label, and a small white instruction or information card is attached to the lower left side.
    $92.20 - $92.20
    $92.20
    $92.20 - $92.20
    $92.20

    Sealife Kelp Meal - 50 lbs

    100% pure, dried Ascophyllum nodosom, harvested from the North Atlantic coasts of Maine. Rich in vitamins, minerals and nutrients. For soils, apply...

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    $92.20 - $92.20
    $92.20
    $92.20 - $92.20
    $92.20
    A large bag of True Organic Seabird Guano (Guano de Ave Marina) displayed flat on a light-colored wooden plank surface.
    $56.50 - $56.50
    $56.50
    $56.50 - $56.50
    $56.50

    True Organic Seabird Guano (6-12-0) - 25 lb

    A rich source of phosphorous and slow-release nitrogen. Apply at planting to encourage early root development and vegetative growth, or ahead of fl...

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    $56.50 - $56.50
    $56.50
    $56.50 - $56.50
    $56.50
    A white plastic jug of KelpStim liquid fertilizer with a brown and white label, set against a rustic wooden plank background.
    $30.80 - $30.80
    $30.80
    $30.80 - $30.80
    $30.80

    Kelpstim (1-0-1) - 1 Gallon

    A combination of soy protein hydrolysate, kelp (Ascophyllum nodosom), potassium hydroxide and humic acids for use in foliar or soil applications. T...

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    $30.80 - $30.80
    $30.80
    $30.80 - $30.80
    $30.80
    A large white bulk tote with the Kreher Family Farms logo, sitting on a wooden pallet outdoors on a grassy area with trees in the background.
    $595.00 - $595.00
    $595.00
    $595.00 - $595.00
    $595.00

    Kreher (5-4-3) 9% Ca - 2000 lb

    The highest quality, best cost per lb of nitrogen composted poultry manure available today. 2000 lbs contains 100-80-60 lbs of N-P-K and 180 lbs of...

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    $595.00 - $595.00
    $595.00
    $595.00 - $595.00
    $595.00
    A white plastic jug of AgroThrive Organic General Purpose Liquid Fertilizer, featuring a green and brown label with an illustration of fresh vegetables, set against a rustic wooden background.
    $59.90 - $59.90
    $59.90
    $59.90 - $59.90
    $59.90

    AgroThrive (3-3-2) - 2.5 Gallon

    Premium liquid fertilizer with a balanced analysis, made from corn steep liquor and fermented fish remnants. Ideal for use at planting and to preve...

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    $59.90 - $59.90
    $59.90
    $59.90 - $59.90
    $59.90
    A large white plastic jug of Brandt Organics Tree & Vine Mix with a detailed label, set against a rustic wooden plank background.
    $49.50 - $49.50
    $49.50
    $49.50 - $49.50
    $49.50

    Brandt Organics Tree and Vine Mix - 2.5 Gallon

    Liquid micronutrients complexed with lignosulfates for efficient nutrient uptake and absorption. Labeled for soil and foliar applications. 2.5% Sul...

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    $49.50 - $49.50
    $49.50
    $49.50 - $49.50
    $49.50
    A large white plastic jug of Brandt Organics Crop Mix with a handle, standing on a wooden surface against a wooden plank background.
    $49.50 - $49.50
    $49.50
    $49.50 - $49.50
    $49.50

    Brandt Organics Crop Mix - 2.5 Gallon

    Liquid micronutrients complexed with lignosulfates for efficient nutrient uptake and absorption. Labeled for soil and foliar applications. 1% Magne...

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    $49.50 - $49.50
    $49.50
    $49.50 - $49.50
    $49.50
    A large white plastic jug of Brandt Organics 6% Calcium liquid fertilizer, featuring a detailed white label with red and black text, set against a rustic wooden plank background.
    $49.50 - $49.50
    $49.50
    $49.50 - $49.50
    $49.50

    Brandt Organics 6% Calcium - 2.5 Gallon

    Liquid Calcium solution complexed with lignosulfates for efficient nutrient uptake and absorption. Labeled for soil and foliar applications. 6% Cal...

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    $49.50 - $49.50
    $49.50
    $49.50 - $49.50
    $49.50
    A large white plastic jug of BRANDT Organics 3% Boron, standing upright against a rustic wooden plank background.
    $49.50 - $49.50
    $49.50
    $49.50 - $49.50
    $49.50

    Brandt Organics 3% Boron - 2.5 Gallon

    Liquid Boron solution complexed with lignosulfates for efficient nutrient uptake and absorption. Labeled for soil and foliar applications. 3% Boron...

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    $49.50 - $49.50
    $49.50
    $49.50 - $49.50
    $49.50
    A large white plastic jug of Brandt Organics 5% Copper liquid micronutrients, standing against a rustic wooden plank background.
    $49.50 - $49.50
    $49.50
    $49.50 - $49.50
    $49.50

    Brandt Organics 5% Copper - 2.5 Gallon

    Liquid Copper solution complexed with lignosulfates for efficient nutrient uptake and absorption. Labeled for soil and foliar applications. 5% Copp...

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    $49.50 - $49.50
    $49.50
    $49.50 - $49.50
    $49.50
    A large white plastic jug of Brandt Organics 5% Iron fertilizer, standing upright against a rustic wooden plank background.
    $49.50 - $49.50
    $49.50
    $49.50 - $49.50
    $49.50

    Brandt Organics 5% Iron - 2.5 Gallon

    Liquid Iron solution complexed with lignosulfates for efficient nutrient uptake and absorption. Labeled for soil and foliar applications. 5% Iron. ...

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    $49.50 - $49.50
    $49.50
    $49.50 - $49.50
    $49.50
    A large white plastic jug of Brandt Organics 4% Mg liquid fertilizer, standing upright against a rustic wooden plank background.
    $49.50 - $49.50
    $49.50
    $49.50 - $49.50
    $49.50

    Brandt Organics 4% Magnesium - 2.5 Gallon

    Liquid Magnesium solution complexed with lignosulfates for efficient nutrient uptake and absorption. Labeled for soil and foliar applications. 4% M...

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    $49.50 - $49.50
    $49.50
    $49.50 - $49.50
    $49.50
    A large white plastic jug of Brandt Organics 7% Mn liquid fertilizer, featuring a white cap and a detailed red and black label, set against a rustic wooden plank background.
    $49.50 - $49.50
    $49.50
    $49.50 - $49.50
    $49.50

    Brandt Organics 7% Manganese - 2.5 Gallon

    Liquid Manganese solution complexed with lignosulfates for efficient nutrient uptake and absorption. Labeled for soil and foliar applications. 7% M...

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    $49.50 - $49.50
    $49.50
    $49.50 - $49.50
    $49.50
    A large white plastic jug of Brandt Organics 7% Zn liquid fertilizer, featuring a detailed white label with red and green text, set against a rustic wooden plank background.
    $49.50 - $49.50
    $49.50
    $49.50 - $49.50
    $49.50

    Brandt Organics 7% Zinc - 2.5 Gallon

    Liquid Zinc solution complexed with lignosulfates for efficient nutrient uptake and absorption. Labeled for soil and foliar applications. 7% Zinc. ...

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    $49.50 - $49.50
    $49.50
    $49.50 - $49.50
    $49.50
    A large white bulk tote bag sitting on a wooden pallet outdoors, with green foliage and grass in the background. A purple label on the front reads 'Coast of Maine' in white script.
    $415.00 - $415.00
    $415.00
    $415.00 - $415.00
    $415.00

    Coast of Maine Schoodic Cow Manure Compost - 60 cu ft

    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 ...

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    $415.00 - $415.00
    $415.00
    $415.00 - $415.00
    $415.00
    Vermont Compost Company Mud - 2 yd sling - Seven Springs Farm Supply
    $0.00 - $0.00
    Call for pricing
    $0.00 - $0.00
    $0.00

    Vermont Compost Company Mud - 2 cu yd

    Here at Seven Springs we have a lot of clients from Vermont. We know because they're always sure to tell us before we ask. You know what else they ...

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    $0.00 - $0.00
    Call for pricing
    $0.00 - $0.00
    $0.00
    A white Seven Springs Farm Supply Blend Tote.
    $560.00 - $560.00
    $560.00
    $560.00 - $560.00
    $560.00

    Seven Springs High Tunnel Blend (4-1-4) - 1000 lb

    For high turnover, high production plantings, especially in high tunnels. This blend is aimed at meeting the needs of intensively grown vegetable c...

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    $560.00 - $560.00
    $560.00
    $560.00 - $560.00
    $560.00
    A white Seven Springs Farm Supply Blend Tote.
    $1,005.00 - $1,005.00
    $1,005.00
    $1,005.00 - $1,005.00
    $1,005.00

    Seven Springs High Tunnel Blend (4-1-4) - 2000 lb

    For high turnover, high production plantings, especially in high tunnels. This blend is aimed at meeting the needs of intensively grown vegetable c...

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    $1,005.00 - $1,005.00
    $1,005.00
    $1,005.00 - $1,005.00
    $1,005.00