General Hydroponics

General Hydroponics was founded over 35 years ago, by Lawrence Brooke. Lawrence’s inspiration for his first hydroponic system was a mountain stream and the plants thriving beside it. This system was prototyped and General Hydroponics began.

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General Hydroponics pH Indicator Solution 8 Oz
Price: $17.78
Availability: In Stock
Item #: 4991 -

    General Hydroponics pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test vial. Many experienced growers prefer our pH Test Kit to expensive electronic meters because of its reliability and ease of use, which are important factors when the health of a valuable crop is at stake. Use 3 drops per 5ml of solution.

    General Hydroponics Armor Si 1 Gal
    Price: $46.01
    Availability: In Stock
    Item #: 3478 -

      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 of media. Use as a growth enhancer with irrigation water, or in addition to your regular fertilizers. Armor Si™ improves plant structure and foliar development, increases yield and improves flower and fruit production. In addition, your plants will experience improved heat and cold tolerance, stress resistance and light absorption, which leads to...

      General Hydroponics Armor Si 1 Qt
      Price: $22.45
      Availability: In Stock
      Item #: 3477 -

        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 of media. Use as a growth enhancer with irrigation water, or in addition to your regular fertilizers. Armor Si™ improves plant structure and foliar development, increases yield and improves flower and fruit production. In addition, your plants will experience improved heat and cold tolerance, stress resistance and light absorption, which leads to...

        General Hydroponics Armor Si 2.5 Gal
        Price: $89.99
        Availability: In Stock
        Item #: 3479 -

          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 of media. Use as a growth enhancer with irrigation water, or in addition to your regular fertilizers. Armor Si™ improves plant structure and foliar development, increases yield and improves flower and fruit production. In addition, your plants will experience improved heat and cold tolerance, stress resistance and light absorption, which leads to...

          General Hydroponics AzaMax 1 Gal
          Was: $309.60
          Sale: $278.64
          Availability: In Stock
          Item #: 2147 -
          • Daily Deals

          AzaMax is a natural product with a broad spectrum of pest control. It contains Azadirachtin A & B as active ingredients and more than 100 limonoids. AzaMax does not use hard chemical solvents and fully uses food-grade formulation ingredients. It is an antifeedant and insect growth regulator that controls pests through starvation and growth disruption. Effectively controls spider mites, thrips, fungus gnats, aphids, whiteflies, leaf miners, worms, beetles, leafhoppers, scales, mealy bugs,...

          General Hydroponics AzaMax 1 Pt
          Price: $55.70
          Availability: In Stock
          Item #: 985 -

            AzaMax™ is a natural product with a broad spectrum of pest control. It contains Azadirachtin A & B as active ingredients and more than 100 limonoids. AzaMax™ does not use hard chemical solvents and fully uses food-grade formulation ingredients. It is an antifeedant and insect growth regulator that controls pests through starvation and growth disruption. Effectively controls spider mites, thrips, fungus gnats, aphids, whiteflies, leaf miners, worms, beetles, leafhoppers, scales, mealy bugs,...

            General Hydroponics AzaMax 1 Qt
            Was: $96.40
            Sale: $86.76
            Availability: In Stock
            Item #: 986 -
            • Daily Deals

            AzaMax is a natural product with a broad spectrum of pest control. It contains Azadirachtin A & B as active ingredients and more than 100 limonoids. AzaMax does not use hard chemical solvents and fully uses food-grade formulation ingredients. It is an antifeedant and insect growth regulator that controls pests through starvation and growth disruption. Effectively controls spider mites, thrips, fungus gnats, aphids, whiteflies, leaf miners, worms, beetles, leafhoppers, scales, mealy bugs,...

            General Hydroponics AzaMax 4 Oz
            Was: $22.08
            Sale: $20.98
            Availability: In Stock
            Item #: 984 -
            • Monthly Deals

            AzaMax™ is a natural product with a broad spectrum of pest control. It contains Azadirachtin A & B as active ingredients and more than 100 limonoids. AzaMax™ does not use hard chemical solvents and fully uses food-grade formulation ingredients. It is an antifeedant and insect growth regulator that controls pests through starvation and growth disruption. Effectively controls spider mites, thrips, fungus gnats, aphids, whiteflies, leaf miners, worms, beetles, leafhoppers, scales, mealy bugs,...

            General Hydroponics Calimagic 1 Gal
            Price: $42.99
            Availability: In Stock
            Item #: 444 -

              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.

              General Hydroponics Calimagic 1 Qt
              Price: $21.29
              Availability: In Stock
              Item #: 443 -

                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.

                General Hydroponics Calimagic 2.5 Gal
                Price: $95.40
                Availability: In Stock
                Item #: 4596 -

                  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.