General Hydroponics

General Hydroponics® Nutrients Designed for Serious Growers

General Hydroponics is a leader in hydroponic plant nutrition, offering a wide range of research‑driven nutrient formulations and supplements. Known for precision and consistency, General Hydroponics products support strong root development, balanced growth, and dependable results across all stages of cultivation in controlled environments.

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GH FloraPro Ca + Micros 5 lb (6/case)

Q113077
Specifically designed for use in commercial cultivation. FloraPro® Calcium+Micros 14-0-0 plus 17% Ca fertilizer will provide your plants with excellent concentrations of Calcium and micronutrients. FloraPro® Calcium + Micros 14-0-0 plus 17% Ca is meant to be used as part of the FloraPro® product system to provide a complete fertilizer program.
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FloraSeries Quart Trial Pack

Q113093
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GH Flora Micro Pint (12/Cs)

Q113094
The foundation of the building-block system. Provides nitrogen, potassium, calcium and trace elements. Combine with FloraGro® and FloraBloom®.
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GH Flora Micro Quart (12/Cs)

Q113095
The foundation of the building-block system. Provides nitrogen, potassium, calcium and trace elements. Combine with FloraGro® and FloraBloom®.
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GH Flora Micro Gallon (4/Cs)

Q113096
The foundation of the building-block system. Provides nitrogen, potassium, calcium and trace elements. Combine with FloraGro® and FloraBloom®.
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GH Flora Micro 2.5 Gallon (2/Cs)

Q113097
The foundation of the building-block system. Provides nitrogen, potassium, calcium and trace elements. Combine with FloraGro® and FloraBloom®.
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GH Flora Micro 6 Gallon

Q113098
The foundation of the building-block system. Provides nitrogen, potassium, calcium and trace elements. Combine with FloraGro® and FloraBloom®.
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GH Flora Micro 55 Gallon

Q113099
The foundation of the building-block system. Provides nitrogen, potassium, calcium and trace elements. Combine with FloraGro® and FloraBloom®.
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GH Flora Micro 275 Gallon Tote (1/Plt)

Q113100
The foundation of the building-block system. Provides nitrogen, potassium, calcium and trace elements. Combine with FloraGro® and FloraBloom®.
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GH MaxiBloom 2.2 lb (12/Cs)

Q113101
MaxiGro™ and MaxiBloom™ are extremely potent, stand-alone, water-soluble, dry concentrate nutrients. Complete in primary, secondary and micronutrients, pH buffered MaxiGro™ and MaxiBloom™ will provide superior results when used with a wide variety of crops in both hydroponic and soil-based environments. MaxiGro™ is for the reproductive stage in fast growing annuals. MaxiBloom™ encourages prolific flowering and fruiting and increases yields and crop quality.
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GH MaxiBloom 16 lb

Q113102
MaxiGro™ and MaxiBloom™ are extremely potent, stand-alone, water-soluble, dry concentrate nutrients. Complete in primary, secondary and micronutrients, pH buffered MaxiGro™ and MaxiBloom™ will provide superior results when used with a wide variety of crops in both hydroponic and soil-based environments. MaxiGro™ is for the reproductive stage in fast growing annuals. MaxiBloom™ encourages prolific flowering and fruiting and increases yields and crop quality.
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GH MaxiBloom 50 lb

Q113103
MaxiGro™ and MaxiBloom™ are extremely potent, stand-alone, water-soluble, dry concentrate nutrients. Complete in primary, secondary and micronutrients, pH buffered MaxiGro™ and MaxiBloom™ will provide superior results when used with a wide variety of crops in both hydroponic and soil-based environments. MaxiGro™ is for the reproductive stage in fast growing annuals. MaxiBloom™ encourages prolific flowering and fruiting and increases yields and crop quality.
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GH MaxiGro 2.2 lb (12/Cs)

Q113104
MaxiGro™ and MaxiBloom™ are extremely potent, stand-alone, water-soluble, dry concentrate nutrients. Complete in primary, secondary and micronutrients, pH buffered MaxiGro™ and MaxiBloom™ will provide superior results when used with a wide variety of crops in both hydroponic and soil-based environments. MaxiGro™ encourages growth of seedlings, cuttings and stimulates rapid growth through the vegetative growth stage.
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GH Flora Kleen Gallon

Q100368

FloraKleen® removes fertilizer residues that can accumulate over time in hydroponic systems, growing media and potting soils. Use FloraKleen monthly to purge your hydroponic system or potted plants of excess salts that can accumulate as a result of regular fertilizer application. FloraKleen is an excellent final flush and can be used to dissolve mineral and salt buildup.

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General Hydroponics FloraKleen (10 L / 2.5 gal)

Q100369

FloraKleen® removes fertilizer residues that can accumulate over time in hydroponic systems, growing media and potting soils. Use FloraKleen monthly to purge your hydroponic system or potted plants of excess salts that can accumulate as a result of regular fertilizer application. FloraKleen is an excellent final flush and can be used to dissolve mineral and salt buildup.

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GH FloraKleen Pro 6 Gallon

Q100371

FloraKleen® Professional removes fertilizer residues that can accumulate over time in hydroponic systems, growing media and potting soils. Use FloraKleen monthly to purge your hydroponic system or potted plants of excess salts that can accumulate as a result of regular fertilizer application. FloraKleen Professional is an excellent final flush and can be used to dissolve mineral and salt buildup.

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General Hydroponics PRO pH Up 2.5 gal

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General Hydroponics® Pro pH adjusters are based on completely different technology than our traditional smaller sized adjusters offering. New non-mineral based acids and bases will not add nutrient value like the use of phosphoric acid or potassium hydroxide. They are safer to use as well as compared to mineral based adjusters. This is due to having a zero rating score for all safety categories on the HMIS scale as well as being non-corrosive and non-caustic. This means there are no HazMat fees to ship these products like other pH adjusters. Use Pro pH UP or Pro pH DOWN to effectively adjust the pH of nutrient solutions or irrigation water. GH Pro pH adjusters are highly concentrated and available in commercial sizes.

  • Non-Caustic
  • Non-Corrosive
  • Do not need to be shipped Hazmat like other adjusters
  • Alternative to harsh mineral hydroxides
  • Triple zero HMIS score
  • Does not contribute nutritional value like other adjusters
  • Concentrated Formula
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General Hydroponics PRO pH Up 6 gal

Q100374

General Hydroponics® Pro pH adjusters are based on completely different technology than our traditional smaller sized adjusters offering. New non-mineral based acids and bases will not add nutrient value like the use of phosphoric acid or potassium hydroxide. They are safer to use as well as compared to mineral based adjusters. This is due to having a zero rating score for all safety categories on the HMIS scale as well as being non-corrosive and non-caustic. This means there are no HazMat fees to ship these products like other pH adjusters. Use Pro pH UP or Pro pH DOWN to effectively adjust the pH of nutrient solutions or irrigation water. GH Pro pH adjusters are highly concentrated and available in commercial sizes.

  • Non-Caustic
  • Non-Corrosive
  • Do not need to be shipped Hazmat like other adjusters
  • Alternative to harsh mineral hydroxides
  • Triple zero HMIS score
  • Does not contribute nutritional value like other adjusters
  • Concentrated Formula
Picture of GH Flora Kleen 6 Gallon

GH Flora Kleen 6 Gallon

Q100370

FloraKleen® removes fertilizer residues that can accumulate over time in hydroponic systems, growing media and potting soils. Use FloraKleen monthly to purge your hydroponic system or potted plants of excess salts that can accumulate as a result of regular fertilizer application. FloraKleen is an excellent final flush and can be used to dissolve mineral and salt buildup.

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GH Ripen Gallon

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Ripen® 0.5-7-6 promotes increased and abundant flowering with greater oil and fragrance production. Ripen is highly concentrated and provides macronutrients that are primarily responsible for flower and fruit growth. Ripen is a liquid nutrient that has been specifically engineered and developed to provide these essential macronutrients in your high value crops life. Use Ripen during the final one-to-two weeks to promote robust flower and fruit production. Think of Ripen as an investment in your plants.

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GH Ripen 6 Gallon

Q100325

Ripen® 0.5-7-6 promotes increased and abundant flowering with greater oil and fragrance production. Ripen is highly concentrated and provides macronutrients that are primarily responsible for flower and fruit growth. Ripen is a liquid nutrient that has been specifically engineered and developed to provide these essential macronutrients in your high value crops life. Use Ripen during the final one-to-two weeks to promote robust flower and fruit production. Think of Ripen as an investment in your plants.

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GH CALiMAGic Quart

Q100326

CALiMAGic™ is a concentrated blend of readily available calcium and magnesium. It is formulated to assist fast-growing plants by preventing secondary nutrient deficiencies. CALiMAGic helps optimize plant nutrition and enhances plant growth and development while preventing blossom end rot and tip burn in many crops, such as tomatoes and lettuce, as well as other calcium-intensive plants.

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GH CALiMAGic 6 Gallon

Q100329

CALiMAGic™ is a concentrated blend of readily available calcium and magnesium. It is formulated to assist fast-growing plants by preventing secondary nutrient deficiencies. CALiMAGic helps optimize plant nutrition and enhances plant growth and development while preventing blossom end rot and tip burn in many crops, such as tomatoes and lettuce, as well as other calcium-intensive plants.

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GH General Organics CaMg+ 2.5 Gallon

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CaMg+® is the ideal supplement to provide a natural source of calcium and magnesium, critical elements in a plant's growth cycle. CaMg+ is biologically catalyzed from oyster shell, dolomite lime and natural plant extracts. Through the use of organic compounds, CaMg+ increases calcium and magnesium transport into the plants. This optimizes plant metabolism, enhancing growth and creating healthier flowers and fruits.

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GH General Organics CaMg+ 6 Gallon

Q100331

CaMg+® is the ideal supplement to provide a natural source of calcium and magnesium, critical elements in a plant's growth cycle. CaMg+ is biologically catalyzed from oyster shell, dolomite lime and natural plant extracts. Through the use of organic compounds, CaMg+ increases calcium and magnesium transport into the plants. This optimizes plant metabolism, enhancing growth and creating healthier flowers and fruits.

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GH General Organics BioBud Gallon

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BioBud® is a powerful bloom stimulator that generates explosive flowering and massive fruit production. BioBud increases metabolic activity and mineral uptake by utilizing biostimulants and organic transport enhancers. This induces abundant, dense floral clusters during the critical flowering and fruiting phases. The results are spectacular flowering and more flavorful fruits. Use BioBud during the flowering phase of plant growth with any baseline fertilizer in any garden soil, potting mix, or other growing media. BioBud is sure to make your garden complete.

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GH General Organics BioWeed Gallon

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BioWeed® is derived from a blend of cold-processed seaweeds that act as a plant and soil vitality enhancer. Seaweeds have long been recognized as stress-reducing agents and powerful plant boosters. BioWeed encourages prolific root and foliage growth as well as larger flowers and frits. BioWeed works synergistically with all fertilizers to promote vigorous, healthy growth. Use with any garden soil, potting mix, or other growing media.

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GH FloraGro Pro 275 Gallon

Q100088

FloraGro® Professional stimulates structural and vegetative growth. Builds strong roots. Provides nitrogen, phosphorous, potassium, magnesium, and secondary minerals. Combine with FloraBloom® Professional and FloraMicro® Professional.

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GH FloraMicro Pro 275 Gallon

Q100091

The foundation of the building-block system is FloraMicro® Professional. Provides nitrogen, potassium, calcium and trace elements. Combine with FloraGro® Professional and FloraBloom® Professional.

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Purpinator 1 Quart

Q100130

Designed to help enhance the expression of purple in capable cultivars, Purpinator® feeds to help support the increased production of flavonoids (plant pigments) and maintains a neutral plant cell pH. Like Terpinator®, Purpinator® provides the building blocks for secondary metabolites, which helps increase the production of terpenes for improved aromatics and flavors. Use alongside General Hydroponics® nutrients or any feed regimen, whether growing hydro, in soil, or with soilless media.

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