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 KoolBloom 16 lb

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KoolBloom® is a highly concentrated nutrient supplement that promotes abundant flowering and facilitates ripening in annual flowers and herbs. KoolBloom is rich with phosphorus and potassium and contains precise amounts of ripening elements. KoolBloom is to be used only at the very end of a plant's life cycle and will help build larger, heavier fruits and flowers.

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GH FloraBlend Quart

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FloraBlend® 0.5-1-1 is a blend of plant nutrients designed for hydroponic growing. FloraBlend can be used when growing in coco coir, hydroponics or soil. FloraBlend can be used in addition to your regular fertilizer program from germination through ripening.

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GH FloraBlend Gallon

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FloraBlend® 0.5-1-1 is a blend of plant nutrients designed for hydroponic growing. FloraBlend can be used when growing in coco coir, hydroponics or soil. FloraBlend can be used in addition to your regular fertilizer program from germination through ripening.

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GH FloraBlend 2.5 Gallon

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FloraBlend® 0.5-1-1 is a blend of plant nutrients designed for hydroponic growing. FloraBlend can be used when growing in coco coir, hydroponics or soil. FloraBlend can be used in addition to your regular fertilizer program from germination through ripening.

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GH FloraBlend 6 Gallon

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FloraBlend® 0.5-1-1 is a blend of plant nutrients designed for hydroponic growing. FloraBlend can be used when growing in coco coir, hydroponics or soil. FloraBlend can be used in addition to your regular fertilizer program from germination through ripening.

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GH Flora Nectar FruitnFusion Gallon

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FloraNectar® contains all natural raw cane sugar, molasses, malt syrup, select plant-based esters, L-amino acids, organic acids, vitamins and essential minerals. This unique blend of ingredients helps your plants regulate enzymes that trigger specific reactions involved in maintaining optimal metabolism. This allows your plants to achieve a balance between respiration and photosynthesis in high-intensity growing environments where the rate of respiration can sometimes exceed the rate of photosynthesis.

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GH Flora Nectar FruitnFusion 2.5 Gallon

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FloraNectar® contains all natural raw cane sugar, molasses, malt syrup, select plant-based esters, L-amino acids, organic acids, vitamins and essential minerals. This unique blend of ingredients helps your plants regulate enzymes that trigger specific reactions involved in maintaining optimal metabolism. This allows your plants to achieve a balance between respiration and photosynthesis in high-intensity growing environments where the rate of respiration can sometimes exceed the rate of photosynthesis.

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GH Flora Nectar FruitnFusion 6 Gallon

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FloraNectar® contains all natural raw cane sugar, molasses, malt syrup, select plant-based esters, L-amino acids, organic acids, vitamins and essential minerals. This unique blend of ingredients helps your plants regulate enzymes that trigger specific reactions involved in maintaining optimal metabolism. This allows your plants to achieve a balance between respiration and photosynthesis in high-intensity growing environments where the rate of respiration can sometimes exceed the rate of photosynthesis.

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GH Flora Nectar Pineapple Rush Gallon

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Pineapple Rush is an organic nutrient supplement designed as a sweetener for your fruits and flowers. FloraNectar® is made with quality organic sugars, including molasses and all natural raw cane sugar. Pineapple Rush adds the essence of pineapple to the formula. Pineapple Rush sweetens crops by optimizing the transference of sugars to fruits and flowers. Beyond enhancing the aroma and flavor of your crop, Pineapple Rush maintains plant metabolism by helping them regulate enzymes.

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GH CALiMAGic Quart

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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 Gallon

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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 2.5 Gallon

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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

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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 pH Down 8 oz (12/Cs)

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The acid formulation uses phosphoric acid to lower the pH to the proper level.
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GH General Organics BioThrive Bloom Quart (12/Cs)

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BioThrive® Bloom provides flowering and fruiting plants with essential nutrients, perfectly balanced for superior blooms and bountiful harvests. Specially designed to maximize flower, fruit and seed production, this unique formulation will give you bigger, more nutritious and delicious yields. BioThrive® Bloom benefits all kinds of plants during the flowering and fruiting phases of growth.
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GH General Organics BioThrive Bloom 6 Gallon

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BioThrive® Bloom provides flowering and fruiting plants with essential nutrients, perfectly balanced for superior blooms and bountiful harvests. Specially designed to maximize flower, fruit and seed production, this unique formulation will give you bigger, more nutritious and delicious yields. BioThrive® Bloom benefits all kinds of plants during the flowering and fruiting phases of growth.
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GH General Organics BioThrive Bloom 6 Gallon

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BioThrive® Bloom provides flowering and fruiting plants with essential nutrients, perfectly balanced for superior blooms and bountiful harvests. Specially designed to maximize flower, fruit and seed production, this unique formulation will give you bigger, more nutritious and delicious yields. BioThrive® Bloom benefits all kinds of plants during the flowering and fruiting phases of growth.
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GH General Organics CaMg+ Quart (12/Cs)

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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 BioThrive Grow Gallon (4/Cs)

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BioThrive® Grow is formulated to maximize vegetative growth by supplying plants with a custom diet that stimulates vigorous root and foliage development. Through proper nutrition, we create a strong frame for later flower, fruit, and seed production. Use BioThrive® Grow to give all types of plants a strong start.
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GH RapidStart 275 ml (12/Cs)

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RapidStart® is a plant nutrient used to promote root growth while enhancing plant vigor and yield. Strong root networks are linked to larger, more vigorous plants. RapidStart® helps plants develop strong root networks. It can be used throughout the vegetative growth stage and in early flower stage to continue to promote root development.
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GH RapidStart 500 ml (12/Cs)

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RapidStart® is a plant nutrient used to promote root growth while enhancing plant vigor and yield. Strong root networks are linked to larger, more vigorous plants. RapidStart® helps plants develop strong root networks. It can be used throughout the vegetative growth stage and in early flower stage to continue to promote root development.
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GH RapidStart Gallon (4/Cs)

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RapidStart® is a plant nutrient used to promote root growth while enhancing plant vigor and yield. Strong root networks are linked to larger, more vigorous plants. RapidStart® helps plants develop strong root networks. It can be used throughout the vegetative growth stage and in early flower stage to continue to promote root development.
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GH Rapid Start 55 Gallon

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RapidStart® is a plant nutrient used to promote root growth while enhancing plant vigor and yield. Strong root networks are linked to larger, more vigorous plants. RapidStart® helps plants develop strong root networks. It can be used throughout the vegetative growth stage and in early flower stage to continue to promote root development.
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GH RapidStart 1 Liter (6/Cs)

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RapidStart® is a plant nutrient used to promote root growth while enhancing plant vigor and yield. Strong root networks are linked to larger, more vigorous plants. RapidStart® helps plants develop strong root networks. It can be used throughout the vegetative growth stage and in early flower stage to continue to promote root development.
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GH General Organics BioRoot Quart (12/Cs)

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GH General Organics BioRoot 2.5 Gallon (2/Cs)

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GH General Organics BioRoot Gallon (4/Cs)

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GH General Organics BioBud Quart (12/Cs)

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GH General Organics BioBud 2.5 Gallon (2/Cs)

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GH General Organics BioThrive Bloom Gallon (4/Cs)

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BioThrive® Bloom provides flowering and fruiting plants with essential nutrients, perfectly balanced for superior blooms and bountiful harvests. Specially designed to maximize flower, fruit and seed production, this unique formulation will give you bigger, more nutritious and delicious yields. BioThrive® Bloom benefits all kinds of plants during the flowering and fruiting phases of growth.
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