Fertilizers

  • Amendments & Growing Media

    Amendments

    Soil Amendments & Growing MediaHealthy soil and growing media are the foundation...

    Amendments

  • BioStimulants

    BioStimulants

    Plant Biostimulants & Growth EnhancersBiostimulants are substances and microorganisms that improve plant...

    BioStimulants

  • Specialty Crop Fertilizers

    Professional-Grade Fertilizers Formulated for Specialty Crops Give your plants the precise nutrition...

    Specialty Crop Fertilizers

  • Foliar Fertilizer Supplies

    Foliar Fertilizer Supplies

    Everything You Need to Run an Effective Foliar ProgramCustom Hydro stocks a...

    Foliar Fertilizer Supplies

  • Liquid Fertilizers

    Liquid Fertilizers

    Blended Liquid Fertilizer ConcentratesLiquid fertilizer concentrates offer convenience and precision for hydroponic,...

    Liquid Fertilizers

  • Organic Fertilizers

    Organic Fertilizers

    Dry Organic & Natural Mineral FertilizersCustom Hydro stocks a full range of...

    Organic Fertilizers

  • Schedule Consultation

    Schedule Consultation

    Schedule a Fertilizer & Hydroponics ConsultationGet expert, one-on-one guidance from Custom Hydro...

    Schedule Consultation

  • Preservatives

    Stock Solution Preservatives

    Preservatives for Fertilizer Solutions & Hydroponic ReservoirsMicrobial contamination in fertilizer stock solutions...

    Stock Solution Preservatives

  • Water Soluble Fertilizers

    Water Soluble Fertilizers

    Maximum Yields with Pure Water Soluble Fertilizers Pure Mineral Fertilizers and Pre-Mixed...

    Water Soluble Fertilizers

Custom Hydro stocks a full selection of water soluble and organic fertilizers and plant bio-stimulants.

Get the perfect fertilizer solution for your growing needs with Custom Hydro! From Canna+ to lettuce to pepper, our wide selection of water soluble and organic fertilizers and plant bio-stimulants will ensure that commercial and hobby growers have just what they need for hydroponics, fertigation and foliar applications.

  • Potassium Nitrate fertilizer 50 lb. bucket
    Potassium Nitrate 50 lb Bucket
    Potassium Nitrate 50 lb Bucket
    $98.47
    $0.00 $98.47
  • Potassium Nitrate RECI, 50 lb. bucket Haifa Multi-K RECI Potassium Nitrate 50 lb bucket
    Haifa Multi-K RECI Potassium Nitrate 50 lb bucket
    Haifa Multi-K RECI Potassium Nitrate 50 lb bucket
    $98.47
    $0.00 $98.47
  • Roots Organic Terp Tea Bloom 40 lb. bag of organic cannabis fertilizer. Roots Organics Terp Tea Bloom 40lb
    Roots Organics Terp Tea Bloom 40 lb
    Grower Price
    Roots Organics Terp Tea Bloom 40 lb
    $100.23
    $156.59 $100.23
    $2.51 lb
    Grower Price
  • Metalosate Manganese fertilizer container with a colorful display of fruits and vegetables on a white background Metalosate Manganese Organic 5 lb.
    Metalosate Manganese Organic 5 lb.
    Grower Price
    Metalosate Manganese Organic 5 lb.
    $96.91
    $143.80 $96.91
    Grower Price
  • Copper Sulfate 8 oz.
    Copper Sulfate 8 oz.
    Copper Sulfate 8 oz.
    $8.50
    $0.00 $8.50
  • Granular MAP 11-52-0 fertilizer 50 lb. Granular MAP 11-52-0 fertilizer 50 lb.
    Granular MAP 11-52-0 fertilizer 50 lb.
    Grower Price
    Granular MAP 11-52-0 fertilizer 50 lb.
    $52.56
    $73.00 $52.56
    Grower Price
  • Potassium Hydroxide flake caustic potash 1 lb.
    Potassium Hydroxide Flake 0-0-75 | 1 lb
    Potassium Hydroxide Flake 0-0-75 | 1 lb
    $11.95
    $0.00 $11.95
  • Sequestar 13.2% Fe EDTA Iron Chelate - Premium Water-Soluble Iron Fertilizer Sequestar 13.2% Fe EDTA Iron Chelate - Premium Water-Soluble Iron Fertilizer
    Sequestar 13.2% Fe EDTA Iron Chelate - Premium...
    Grower Price
    Sequestar 13.2% Fe EDTA Iron Chelate - Premium...
    From $29.65
    $44.58 From $29.65
    Grower Price
  • Pastille 99% Elem Sulfur - 50 lb Pastille 99% Elem Sulfur - 50 lb
    Pastille 99% Elem Sulfur - 50 lb
    Grower Price
    Pastille 99% Elem Sulfur - 50 lb
    $32.10
    $48.24 $32.10
    Grower Price
  • Potassium Nitrate 1 lb
    Potassium Nitrate 1 lb
    Grower Price
    Potassium Nitrate 1 lb
    $7.32
    $15.00 $7.32
    Grower Price
  • H2Pro Greenhouse and Nursery Liquid H2Pro Wetting Agent 2.5 Gallon
    H2Pro Wetting Agent 2.5 Gallon
    Grower Price
    H2Pro Wetting Agent 2.5 Gallon
    $247.89
    $402.50 $247.89
    $99.16 gal
    Grower Price
  • Calcium Formate 30% Ca nitrogen-free water-soluble fertilizer 4 lb resealable jar Calcium Formate 30% Ca Fertilizer 4 lb
    Calcium Formate 30% Ca Fertilizer 4 lb
    Calcium Formate 30% Ca Fertilizer 4 lb
    $13.02
    $13.02
  • KIR silicic acid and chitosan fertilizer Haifa Stim KIR silicic acid and chitosan fertilizer
    KIR Chitosan & Silicic Acid Biostimulant, 1 Liter
    Grower Price
    KIR Chitosan & Silicic Acid Biostimulant, 1 Liter
    $82.80
    $110.40 $82.80
    Grower Price
  • White bucket with red text on a white background PureCal 13-0-0 Ammonium-Free Calcium Nitrate Fertilizer | 40 lb Pail
    PureCal 13-0-0 Ammonium-Free Calcium Nitrate Fertilizer | 40...
    Sold out
    PureCal 13-0-0 Ammonium-Free Calcium Nitrate Fertilizer | 40...
    $40.10
    $0.00 $40.10
    Sold out
  • Maximo 361 Mini-Granule Zinc Sulfate | 35.5% Zn 50 lb Maximo 361 Mini-Granule Zinc Sulfate | 35.5% Zn 50 lb
    Maximo 361 Mini-Granule Zinc Sulfate | 35.5% Zn...
    Grower Price
    Maximo 361 Mini-Granule Zinc Sulfate | 35.5% Zn...
    $60.52
    $90.00 $60.52
    Grower Price
  • Iron Sulfate Heptahydrate 1 lb.
    Iron Sulfate Heptahydrate 1 lb.
    Iron Sulfate Heptahydrate 1 lb.
    $4.75
    $0.00 $4.75

Serving Arkansas, Kansas, Missouri and Oklahoma. Shipping Nationwide! Wholesale to the public!