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.
Featured products
General Hydroponics® FloraGro® 2-1-6
P_00154
Stimulates structural and vegetative growth. Builds strong roots. Provides nitrogen, phosphorous, potassium and secondary minerals.
General Hydroponics® FloraPro™ Grow 10-12-22
P_00592
- Provides plants with excellent concentrations and ratios of nutrients to help optimize vegetative growth.
- Designed to be used as part of the General Hydroponics® FloraPro™ product system to provide a complete fertilizer program.
- Specifically designed for use in commercial cultivation.
General Hydroponics® FloraBloom® 0-5-4
P_00152
Stimulates flower and fruit development. Enhances flavor, aroma, and essential oils. Provides high phosphorous, potassium, magnesium and sulfur.
General Hydroponics® FloraPro™ Bloom 7-12-27
P_00168
- Provides plants with excellent concentrations and ratios of nutrients to help optimize flower development.
- Designed to be used as part of the General Hydroponics® FloraPro™ product system to provide a complete fertilizer program.
- Specifically designed for use in commercial cultivation.
General Hydroponics PRO pH Up 6 gal
Q113142
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.
General Hydroponics PRO pH Up 2.5 gal (2/CS)
Q113146
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.
General Hydroponics PRO pH Down 2.5 gal (2/CS)
Q113147
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.
GH CALiMAGic 6 Gallon
Q113333
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.
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®.
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®.
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®.
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.
GH Liquid KoolBloom 6 Gallon
Q113300
Liquid KoolBloom® is a bulking agent that goes way beyond other bloom boosters. Enriched with stress-reducing vitamins and nutrient-transporting acids, it promotes heavy production of essential oils, fantastic flavors and increases fruiting and flower development. Liquid KoolBloom® should be used at the start of the reproductive cycle, initiating larger, heavier fruits and flowers. During the last two weeks, use Dry KoolBloom® for an additional bloom boost and to facilitate ripening.
AzaMax 4oz
Q113746
- Natural product with broad-spectrum pest control.
- Contains Azadirachtin A & B and over 100 limonoids.
- No hard chemical solvents used.
- Acts as an antifeedant and insect growth regulator.
- Controls pests through starvation and growth disruption.
- Effective against spider mites, thrips, fungus gnats, aphids, whiteflies, leaf miners, worms, beetles, leafhoppers, scales, mealy bugs, nematodes, and other soil-borne pests.
- 4 ounce bottle.
AzaMax 16oz
Q113747
- Natural product with broad-spectrum pest control.
- Contains Azadirachtin A & B and over 100 limonoids.
- No hard chemical solvents used.
- Acts as an antifeedant and insect growth regulator.
- Controls pests through starvation and growth disruption.
- Effective against spider mites, thrips, fungus gnats, aphids, whiteflies, leaf miners, worms, beetles, leafhoppers, scales, mealy bugs, nematodes, and other soil-borne pests.
- 16 ounce bottle.
AzaMax 1qt
Q113748
- Natural product with broad-spectrum pest control.
- Contains Azadirachtin A & B and over 100 limonoids.
- No hard chemical solvents used.
- Acts as an antifeedant and insect growth regulator.
- Controls pests through starvation and growth disruption.
- Effective against spider mites, thrips, fungus gnats, aphids, whiteflies, leaf miners, worms, beetles, leafhoppers, scales, mealy bugs, nematodes, and other soil-borne pests.
- 1 quart bottle.
AzaMax 1gal
Q113749
- Natural product with broad-spectrum pest control.
- Contains Azadirachtin A & B and over 100 limonoids.
- No hard chemical solvents used.
- Acts as an antifeedant and insect growth regulator.
- Controls pests through starvation and growth disruption.
- Effective against spider mites, thrips, fungus gnats, aphids, whiteflies, leaf miners, worms, beetles, leafhoppers, scales, mealy bugs, nematodes, and other soil-borne pests.
- 1 gallon bottle.
GH Liquid KoolBloom Gallon (4/Cs)
Q113298
Liquid KoolBloom® is a bulking agent that goes way beyond other bloom boosters. Enriched with stress-reducing vitamins and nutrient-transporting acids, it promotes heavy production of essential oils, fantastic flavors and increases fruiting and flower development. Liquid KoolBloom® should be used at the start of the reproductive cycle, initiating larger, heavier fruits and flowers. During the last two weeks, use Dry KoolBloom® for an additional bloom boost and to facilitate ripening.
GH Liquid KoolBloom 2.5 Gallon (2/Cs)
Q113299
Liquid KoolBloom® is a bulking agent that goes way beyond other bloom boosters. Enriched with stress-reducing vitamins and nutrient-transporting acids, it promotes heavy production of essential oils, fantastic flavors and increases fruiting and flower development. Liquid KoolBloom® should be used at the start of the reproductive cycle, initiating larger, heavier fruits and flowers. During the last two weeks, use Dry KoolBloom® for an additional bloom boost and to facilitate ripening.
GH Armor Si 6 Gallon
Q113315
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 greater plant stature.
GH Flora Kleen Gallon (4/Cs)
Q113318
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.
GH Flora Kleen 2.5 Gallon (2/Cs)
Q113319
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.
GH Flora Kleen 6 Gallon
Q113320
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.
GH CALiMAGic 55 Gallon (1/Cs)
Q113330
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.
GH CALiMAGic 2.5 Gallon (2/Cs)
Q113332
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.
GH RapidStart 1 Liter (6/Cs)
Q113198
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.
GH Floralicious Plus 55 Gallon
Q113219
"The foundation of Floralicious® is Floralicious Plus, our No. 1 nutrient additive. This highly concentrated solution is formulated for use in both the vegetative and flowering stages of growth. Floralicious features a potent blend of nutrients for plant vigor.
Whether you're using prepared soil or soilless mixes, coco blends, or hydroponics, Floralicious can help you bring out the best in your plants."
GH General Organics BioThrive Bloom Quart (12/Cs)
Q113177
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.
GH General Organics BioThrive Bloom 6 Gallon
Q113178
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.
GH General Organics BioThrive Bloom 6 Gallon
Q113179
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.
GH General Organics CaMg+ Quart (12/Cs)
Q113180
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.
