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General Hydroponics

General Hydroponics

In launching General Hydroponics, that team created a foundation that's allowed us to expand in meaningful and industry-changing directions. We now have state-of-the-art facilities in North America and Europe where researchers develop products, solutions and systems that help you care for your plants in a way that delivers the best possible results.

Our Santa Rosa, Calif., factory features large on-site grow facilities that use alternative energy sources and green technologies to save water and power. A specialized farm division has tested over 100 plant varieties for yield, flavor, nutrition, appearance, disease resistance, growth rate and suitability for hydroponic systems.

While improving our customers' growing practices, we're also dedicated to creating a cleaner and more environmentally efficient world. That's why we offer advanced systems powered by solar energy, as well as filtration products that make the most of organic components and nutrient formulations. With industry-leading manufacturing and research, we continually develop products that enhance your results while being kind to the environment.

We honor the vision of our founders by always thinking about what's next. With consistent quality, value and results, General Hydroponics remains committed to leading the industry, offering the most innovative products available and serving growers like you around the world.

General Hydroponics is now part of the Hawthorne Gardening Company. Please visit our website to see our complete family of brands.
  • General Hydroponics pH Down - HydroPros.com

    General Hydroponics pH Down

    General Hydroponics
    from $8.17

    To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to f...

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    from $8.17
  • CaliMagic - HydroPros.com

    General Hydroponics CaliMagic

    General Hydroponics
    from $11.50

    CALiMAGicTM is a concentrated blend of readily available calcium and magnesium. It is formulated to assist fast growing plants by preventing second...

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    from $11.50
  • FloraBloom - HydroPros.com

    General Hydroponics FloraBloom

    General Hydroponics
    from $8.88

    FLORABLOOM: Stimulates flower and fruit development. Enhances flavor, aroma, and essential oils. Provides high phosphorus, potassium, magnesium, an...

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    from $8.88
  • FloraMicro - HydroPros.com

    General Hydroponics FloraMicro

    General Hydroponics
    from $12.45

    The original Building-Block Nutrient System, often imitated but never duplicated. Flora Series contains complete primary, secondary and micronutrie...

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    from $12.45
  • FloraGro - HydroPros.com

    General Hydroponics FloraGro

    General Hydroponics
    from $8.88

    FLORAGRO: Stimulates structural and vegetative growth. Builds strong roots. Provides nitrogen, phosphorous, potassium, and secondary minerals. The ...

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    from $8.88
  • General Hydroponics pH UP - HydroPros.com

    General Hydroponics pH UP

    General Hydroponics
    from $8.17

    General Hydroponics pH UP buffer adjuster hydroponic Product Description To maximize plant growth, the pH content of your nutrients should be sligh...

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    from $8.17
  • Azamax - HydroPros.com

    General Hydroponics Azamax

    General Hydroponics
    from $22.58

    AzaMax is a natural product with a broad spectrum of pest control and broad plant applications. It contains Azadirachtin A;B as active ingredients ...

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    from $22.58
  • General Hydroponics Liquid Kool Bloom - HydroPros.com

    General Hydroponics Liquid Kool Bloom

    General Hydroponics
    from $15.45

    Liquid KoolBloom is a is a bulking agent that goes way beyond other bloom boosters. Enriched with stress reducing vitamins and nutrient transportin...

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    from $15.45
  • Armor Si - HydroPros.com

    General Hydroponics Armor Si

    General Hydroponics
    from $11.22

    Armor Si is suitable for all types of plants during all stages of growth. It can be used for plants growing in hydroponics, Coco Coir and all types...

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    from $11.22
  • FloraKleen - HydroPros.com

    General Hydroponics FloraKleen

    General Hydroponics
    from $6.93

    FloraKleen removes fertilizer residue that can accumulate over time in hydroponic systems, growing media, and potting soils. Use FloraKleen monthly...

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    from $6.93
  • General Hydroponics FloraLicious Plus - HydroPros.com

    General Hydroponics FloraLicious Plus

    General Hydroponics
    from $43.32

    Floralicious Plus is a super concentrated blend of bioactive plant, marine, microbial, and mineral extracts. It is a one part organic nutrient addi...

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    from $43.32
  • General Hydroponics Ph 7.0 Calibration Solution - HydroPros.com

    General Hydroponics Ph 7.0 Calibration Solution

    General Hydroponics
    from $5.99

    General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many...

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    from $5.99
  • Diamond Nectar - HydroPros.com

    General Hydroponics Diamond Nectar

    General Hydroponics
    from $12.25

    Diamond Nectar: Despite the low level of nutrients found in natural soil-based environments, plant growth nevertheless occurs because humic acids c...

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    from $12.25
  • General Hydroponics RapidStart Root Enhancer - HydroPros.com

    General Hydroponics RapidStart Root Enhancer

    General Hydroponics
    from $18.99

    RapidStart enhances your growing experience by delivering a powerful blend of premium plant extracts, amino acids, and nutrients generating explosi...

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    from $18.99
  • MaxiBloom - HydroPros.com

    MaxiBloom

    General Hydroponics
    from $11.53

    MaxiGro and Maxi Bloom are stand-alone, water-soluble, dry concentrated nutrients MaxiGro and Maxi Bloom will provide superior results when used wi...

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    from $11.53
  • MaxiGro - HydroPros.com

    MaxiGro

    General Hydroponics
    from $11.53

    MaxiGro and MaxiBloom are standalone, water-soluble, dry concentrated nutrients. Complete in Primary, Secondary, and Micronutrients, pH buffered Ma...

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    from $11.53
  • FloraSeries Performance Pack - HydroPros.com
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    General Hydroponics FloraSeries Performance Pack

    General Hydroponics
    $42.59

    Designed to excel in coco, hydroponics, and soil! The FloraSeries Performance Pack includes: 16 oz FloraMicro16 oz FloraGro16 oz FloraBloom8 oz Flo...

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    $42.59
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  • FloraBlend Vegan Plant Booster - HydroPros.com

    General Hydroponics FloraBlend Vegan Plant Booster

    General Hydroponics
    from $8.52

    These highly soluble organic compounds increase and promote healthy root structures, build the plants immune system and provide carbon building blo...

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    from $8.52
  • General Hydroponics FloraNova Grow - HydroPros.com

    General Hydroponics FloraNova Grow

    General Hydroponics
    from $19.64

    FloraNova represents a breakthrough in fertilizer technology. FloraNova gives users both the strength of a dry concentrate and the ease of a liquid...

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    from $19.64
  • Kool Bloom 2.2 Pound - HydroPros.com

    Kool Bloom 2.2 Pound

    General Hydroponics
    from $20.98

    • Encourages abundant flowering• Facilitates ripening in annuals• Boosts production of essential oils and fragrances• Increases size and weight of ...

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    from $20.98
  • General Hydroponics Ph 4.01 Calibration Solution - HydroPros.com

    General Hydroponics Ph 4.01 Calibration Solution

    General Hydroponics
    from $5.31

    General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many...

    View full details
    from $5.31
  • FloraNova Bloom - HydroPros.com

    General Hydroponics FloraNova Bloom

    General Hydroponics
    from $19.64

    FloraNova represents a breakthrough in fertilizer technology. FloraNova gives users both the strength of a dry concentrate and the ease of a liquid...

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    from $19.64
  • General Hydroponics Ripen - HydroPros.com
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    General Hydroponics Ripen

    General Hydroponics
    from $23.67

    Ripen® 0.5-7-6 promotes increased and abundant flowering with greater oil and fragrance production. Ripen® is highly concentrated and provides macr...

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    from $23.67
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