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.

  • Urea46-0-0 with low biuret (0.5% max) 1 lb.
    Urea46-0-0 with low biuret (0.5% max) 1 lb.
    Urea46-0-0 with low biuret (0.5% max) 1 lb.
    $12.69
    $0.00 $12.69
  • Peters Professional Liquid S.T.E.M. Chelated 2.64 gallons
    Peters Liquid S.T.E.M. Chelated 2.64 gal
    Grower Price
    Peters Liquid S.T.E.M. Chelated 2.64 gal
    $143.84
    $235.80 $143.84
    $54.48 gal
    Grower Price
  • Azomite 44 lb. bag
    Azomite 44 lb. bag
    Grower Price
    Azomite 44 lb. bag
    $39.75
    $45.95 $39.75
    Grower Price
  • Potassium Sulfate STANDARD FINES 1 LB Soluble Organic Potassium Sulfate fertilizer
    Organic SOP 0-0-50 Standard Fines | 1 lb
    Organic SOP 0-0-50 Standard Fines | 1 lb
    $7.40
    $0.00 $7.40
  • Tomato Special 4-18-38 fertilizer 1 lb. MasterBlend 4-18-38 Tomato Formula 1 lb.
    MasterBlend 4-18-38 Tomato Formula 1 lb.
    MasterBlend 4-18-38 Tomato Formula 1 lb.
    $6.95
    $0.00 $6.95
  • Potassium acetate foliar fertilizer 0-0-25 Quart
    Potassium acetate foliar fertilizer 0-0-25 Quart
    Potassium acetate foliar fertilizer 0-0-25 Quart
    $22.90
    $0.00 $22.90
  • Copper Sulfate fertilizer 50 lb. (CHEM ONE FINES) Chem One Copper Sulfate Fine Crystals | 25% Cu 50 lb
    Chem One Copper Sulfate Fine Crystals | 25%...
    Chem One Copper Sulfate Fine Crystals | 25%...
    $176.39
    $0.00 $176.39
  • Copper sulfate fine crystals 20 lb white 2-gallon plastic pail with Custom Hydro Nutrients logo Copper Sulfate fertilizer FINE POWDER for organic, hydroponics and spray solutions.
    Copper Sulfate Fine Crystals | 25% Cu 20...
    Copper Sulfate Fine Crystals | 25% Cu 20...
    $88.42
    $0.00 $88.42
  • CalPhos soft rock phosphate granular 4 lb. resealable bag — 0-3-0 organic phosphorus and calcium by Custom Hydro CalPhos Soft Rock Phosphate GRANULAR 4 lb.
    CalPhos Soft Rock Phosphate GRANULAR 4 lb.
    CalPhos Soft Rock Phosphate GRANULAR 4 lb.
    $5.00
    $5.00
    $1.25 lb
  • Potassium Nitrate 1 lb
    Potassium Nitrate 1 lb
    Grower Price
    Potassium Nitrate 1 lb
    $7.32
    $15.00 $7.32
    Grower Price
  • Citric acid anhydrous 4 lb resealable bag — pure white crystalline powder, food-grade, non-GMO, NOP compliant Citric Acid Anhydrous 4 lb.
    Citric Acid Anhydrous 4 lb.
    Citric Acid Anhydrous 4 lb.
    $28.50
    $0.00 $28.50
    $7.13 lb
  • 5-31-40 POLYPHOSPHATE FERTILIZER 1 lb.
    5-31-40 POLYPHOSPHATE FERTILIZER 1 lb.
    Sold out
    5-31-40 POLYPHOSPHATE FERTILIZER 1 lb.
    $13.92
    $0.00 $13.92
    Sold out
  • 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
  • DKP 0-41-54 fertilizer 20 lb. DKP 0-41-54 fertilizer 20 lb.
    DKP 0-41-54 fertilizer 20 lb.
    DKP 0-41-54 fertilizer 20 lb.
    $89.64
    $0.00 $89.64
  • Cytokin Bioregulator Concentrate 1 gallon Cytokin Bioregulator Concentrate 1 gallon
    Cytokin Bioregulator Concentrate 1 gallon
    Grower Price
    Cytokin Bioregulator Concentrate 1 gallon
    $183.45
    $276.00 $183.45
    Grower Price
  • Potassium Nitrate fertilizer 50 lb. bucket
    Potassium Nitrate 50 lb Bucket
    Potassium Nitrate 50 lb Bucket
    $98.47
    $0.00 $98.47

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