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.

  • Floraprop Bloom fertilizer package on a white background General Hydroponics FloraPro Bloom fertilizer package on a white background
    FloraPro Bloom 7-12-27 Water Soluble Fertilizer - 25lb
    Grower Price
    FloraPro Bloom 7-12-27 Water Soluble Fertilizer - 25lb
    $72.63
    $84.88 $72.63
    Grower Price
  • Roots Organics Super Phos Rock, 55 lbs
    Roots Organics Super Phos Rock, 55 lbs
    Grower Price
    Roots Organics Super Phos Rock, 55 lbs
    $94.80
    $142.55 $94.80
    Grower Price
  • Rexolin (Dissolvine) E-Mg-6 magnesium edta fertilizer 55 lb.
    Rexolin (Dissolvine) E-Mg-6 magnesium edta fertilizer 55 lb.
    Grower Price
    Rexolin (Dissolvine) E-Mg-6 magnesium edta fertilizer 55 lb.
    $399.26
    $450.00 $399.26
    Grower Price
  • BLOOM FOLIAR FERTILIZER SPRAY
    BLOOM FOLIAR FERTILIZER SPRAY
    BLOOM FOLIAR FERTILIZER SPRAY
    From $6.14
    $0.00 From $6.14
  • FULL TILT : LATE BLOOM RIPENER
    FULL TILT : LATE BLOOM RIPENER
    FULL TILT : LATE BLOOM RIPENER
    From $8.06
    $0.00 From $8.06
  • V2 VEGETATIVE PART 2
    V2 VEGETATIVE PART 2
    V2 VEGETATIVE PART 2
    From $6.14
    $0.00 From $6.14
  • Foliar Pack OG BIOWAR
    Foliar Pack OG BIOWAR
    Foliar Pack OG BIOWAR
    From $28.99
    $0.00 From $28.99
  • Five Star Soil Pro Plus fertilizer container with green label on a white background Five Star Soil Pro Plus quart jug — bio-nutritional soil conditioner with humic acid and amino acids
    Five Star Soil Pro Plus | Bio-Nutritional Soil...
    Five Star Soil Pro Plus | Bio-Nutritional Soil...
    From $24.19
    From $24.19
    $0.76 oz
  • CalPhos soft rock phosphate granular 1 lb. resealable bag — 0-3-0 organic phosphorus and calcium by Custom Hydro CalPhos Soft Rock Phosphate POWDER 1 lb.
    CalPhos Soft Rock Phosphate POWDER 1 lb.
    CalPhos Soft Rock Phosphate POWDER 1 lb.
    $2.97
    $2.97
    $2.97 lb
  • Sigma Biochar 5 micron Activated Biochar | 2.5 gallons Sigma Biochar 5 Micron activated liquid biochar infographic — 65% organic carbon, improves CEC and water retention, promotes soil biology, for turf, trees, and fertigation
    Sigma Biochar 5 micron Activated Biochar | 2.5...
    Sigma Biochar 5 micron Activated Biochar | 2.5...
    $149.63
    $149.63
    $59.85 gal
  • Sigma K-Ferm liquid potassium fertilizer 2.5 gallon jug — 12% K₂O fermentation-derived, for organic production Sigma K-Ferm organic liquid potassium fertilizer infographic — 12% K₂O, fermentation-derived organic acids, rapid potassium uptake, for foliar, fertigation, and turfgrass applications
    Sigma K-Ferm Performance Fertilizer for Organic Production |...
    Sigma K-Ferm Performance Fertilizer for Organic Production |...
    $253.05
    $253.05
    $101.22 gal
  • Sigma 6-2-6 Bio Fine With Value-Added Biologicals | 50 lb. Sigma 6-2-6 Bio Fine With Value-Added Biologicals | 50 lb.
    Sigma 6-2-6 Bio Fine With Value-Added Biologicals |...
    Sigma 6-2-6 Bio Fine With Value-Added Biologicals |...
    $38.68
    $38.68
    $0.77 lb
  • Sigma 2-4-2 Bio With Value-Added Biologicals | 50 lb. Sigma 2-4-2 Bio With Value-Added Biologicals | 50 lb.
    Sigma 2-4-2 Bio With Value-Added Biologicals | 50...
    Sigma 2-4-2 Bio With Value-Added Biologicals | 50...
    $26.20
    $26.20
    $0.52 lb
  • Metalosate Iron Organic 44 lb Product Image Metalosate Iron Organic 44 lb Infographic
    Metalosate Iron Organic 44 lb.
    Metalosate Iron Organic 44 lb.
    $804.65
    $804.65
  • Roots Organics Terp Tea Microbe Charge 9lb
    Roots Organics Terp Tea Microbe Charge 9 lb
    Grower Price
    Roots Organics Terp Tea Microbe Charge 9 lb
    $89.10
    $101.51 $89.10
    Grower Price
  • Mineral Soil Test
    Mineral Soil Lab Test | Field & In-Ground...
    Mineral Soil Lab Test | Field & In-Ground...
    $49.00
    $0.00 $49.00

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