General Hydroponics

General Hydroponics

At General Hydroponics, growing is at the heart of who we are and everything we do. We live it and breathe it.We’re not just helping along an entire movement of like-minded difference makers, rule breakers, and boundary pushers — we’re leading it.

As industry pioneers with more than 45 years in the game, you could say we’re one of the OGs of hydroponics. We’ve come a long way from our humble origins as a scrappy garage-based startup to becoming the leading name in high-impact growing solutions on a global scale. But the philosophy, development, and innovative spirit at the heart of our products is anything but old school.

Out of stock
10 days
HGC724470
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. 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, nematodes and other soil-borne pests. Mix a tablespoon per gallon.
$9143
Out of stock
10 days
HGC724464
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. 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, nematodes and other soil-borne pests. Mix a tablespoon per gallon.
$2556
Out of stock
10 days
HGC724477
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. 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, nematodes and other soil-borne pests. Mix a tablespoon per gallon.
$42885
Out of stock
10 days
HGC724475
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. 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, nematodes and other soil-borne pests. Mix a tablespoon per gallon.
$17713
Out of stock
10 days
HGC732216
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.
$23950
In stock
10 days
HGC732223
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.
$34880
Out of stock
10 days
HGC732253
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.
$97876
In stock
10 days
HGC718070
Your favorite 3-part nutrient system you need to get started in one box. This box contains: 1 quart FloraMicro®, FloraGro® and FloraBloom®
$2961
Out of stock
10 days
HGC718006
FloraPro Grow is specially formulated for high value production crops where results and consistency are paramount. Our unique formulation and methodology produce superior results in large scale operations. Designed from the ground up for fertilizer injection systems, FloraPro Grow is easy to use and completely water soluble. Our complete and balanced formula is cost effective, scalable and consistent to meet the high standards of a competitive industry.
$5906
In stock
10 days
HGC722006
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....
$8316
In stock
10 days
HGC722003
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....
$1,67325
In stock
10 days
HGC722002
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....
$18591
Out of stock
10 days
HGC722013
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.
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Out of stock
10 days
HGC722011
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.
Request Quote
In stock
10 days
HGC722004
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....
$8316
In stock
10 days
HGC722001
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....
$1,67325
In stock
10 days
HGC722000
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....
$18591
Out of stock
10 days
HGC722009
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.
Request Quote
Out of stock
10 days
HGC722007
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.
Request Quote
In stock
10 days
HGC718445
For use with all General Hydroponics® 6 gallon containers.
$303
In stock
10 days
HGC732806
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.
$8949
In stock
10 days
HGC732807
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.
$1,51938
In stock
10 days
HGC732808
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.
$20236
In stock
10 days
HGC732804
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.
$3963
In stock
10 days
HGC732802
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.
$1616
Out of stock
10 days
HGC733531
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.
$54548
In stock
10 days
HGC733535
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.
$8015
In stock
10 days
HGC733533
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.
$5,83840
In stock
10 days
HGC733532
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.
$1,37584
In stock
10 days
HGC733540
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.
$16528
Out of stock
10 days
HGC732004
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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In stock
10 days
HGC733530
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.
$3421
Out of stock
10 days
HGC732005
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.
Request Quote
In stock
10 days
HGC733525
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.
$1368
Out of stock
10 days
HGC714064
The CocoTek line of organic growing media consists of three different types of compressed coco coir. This high-quality, low-sodium growing media is an environmentally friendly alternative to sphagnum peat moss. When hydrated with water, CocoTek blocks rapidly expand. The natural coir block contains only coconut pith and fibers. Great for water-holding capacity, these materials also provide plenty of aeration and drainage.
$1164
Out of stock
10 days
HGC714045
Perfect for aeroponic systems that use net baskets and loose growing mediums. This excellent CocoTek product is designed to sit inside 2 in, 3 in and 6 in plastic baskets and prevent media from falling through.
$153
Out of stock
10 days
HGC726916
Put even more power into coconut coir with a formula that makes the most of your amendments. Featuring calcium and magnesium, CocoTek A+B offer an easy-to-use formula that's designed to enhance your coir. You can deliver nutrition from growth to bloom, giving your plants the benefits of premium nutrients in addition to the many advantages of coir. CocoTek Bloom A+B's elevated levels of our proprietary calcium blend is designed for increased yield during flowering or plant maturity.
$8227
Out of stock
10 days
HGC726923
Put even more power into coconut coir with a formula that makes the most of your amendments. Featuring calcium and magnesium, CocoTek A+B offer an easy-to-use formula that's designed to enhance your coir. You can deliver nutrition from growth to bloom, giving your plants the benefits of premium nutrients in addition to the many advantages of coir. CocoTek Bloom A+B's elevated levels of our proprietary calcium blend is designed for increased yield during flowering or plant maturity.
$3313
Out of stock
10 days
HGC726934
Put even more power into coconut coir with a formula that makes the most of your amendments. Featuring calcium and magnesium, CocoTek A+B offer an easy-to-use formula that's designed to enhance your coir. You can deliver nutrition from growth to bloom, giving your plants the benefits of premium nutrients in addition to the many advantages of coir. CocoTek Bloom A+B's elevated levels of our proprietary calcium blend is designed for increased yield during flowering or plant maturity.
$3,16499
Out of stock
10 days
HGC726918
Put even more power into coconut coir with a formula that makes the most of your amendments. Featuring calcium and magnesium, CocoTek A+B offer an easy-to-use formula that's designed to enhance your coir. You can deliver nutrition from growth to bloom, giving your plants the benefits of premium nutrients in addition to the many advantages of coir. CocoTek Bloom A+B's elevated levels of our proprietary calcium blend is designed for increased yield during flowering or plant maturity.
$10135
Out of stock
10 days
HGC726919
Put even more power into coconut coir with a formula that makes the most of your amendments. Featuring calcium and magnesium, CocoTek A+B offer an easy-to-use formula that's designed to enhance your coir. You can deliver nutrition from growth to bloom, giving your plants the benefits of premium nutrients in addition to the many advantages of coir. CocoTek Bloom A+B's elevated levels of our proprietary calcium blend is designed for increased yield during flowering or plant maturity.
$1075
Out of stock
10 days
HGC726944
Put even more power into coconut coir with a formula that makes the most of your amendments. Featuring calcium and magnesium, CocoTek A+B offer an easy-to-use formula that's designed to enhance your coir. You can deliver nutrition from growth to bloom, giving your plants the benefits of premium nutrients in addition to the many advantages of coir. The CocoTek Grow A+B nutrient combination brings nitrogen and calcium into the crucial vegetative stage of plant growth.
$2,89257
Out of stock
10 days
HGC726906
Put even more power into coconut coir with a formula that makes the most of your amendments. Featuring calcium and magnesium, CocoTek A+B offer an easy-to-use formula that's designed to enhance your coir. You can deliver nutrition from growth to bloom, giving your plants the benefits of premium nutrients in addition to the many advantages of coir. The CocoTek Grow A+B nutrient combination brings nitrogen and calcium into the crucial vegetative stage of plant growth.
$9336
Out of stock
10 days
HGC722079
General Hydroponics Defguard Biofungicide/Bactericide is an OMRI-listed biofungicide and bactericide for use in organic gardening that's effective against a variety of pathogens, particularly botrytis (which causes botrytis blight, or gray mold) and powdery mildew. It also controls anthracnose; bacterial leaf blights, spots and specks; black mold; black spot (on roses); brown spot; fruit rot; and leaf spots. If you need a biofungicide/bactericide that prevents bacterial and fungal diseases from even establishing themselves on leaves, look no further than General Hydroponics Defguard Biofungicide/Bactericide.
$19940
Out of stock
10 days
HGC722078
General Hydroponics Defguard Biofungicide/Bactericide is an OMRI-listed biofungicide and bactericide for use in organic gardening that's effective against a variety of pathogens, particularly botrytis (which causes botrytis blight, or gray mold) and powdery mildew. It also controls anthracnose; bacterial leaf blights, spots and specks; black mold; black spot (on roses); brown spot; fruit rot; and leaf spots. If you need a biofungicide/bactericide that prevents bacterial and fungal diseases from even establishing themselves on leaves, look no further than General Hydroponics Defguard Biofungicide/Bactericide.
$8188
Out of stock
10 days
HGC722076
General Hydroponics Defguard Biofungicide/Bactericide is an OMRI-listed biofungicide and bactericide for use in organic gardening that's effective against a variety of pathogens, particularly botrytis (which causes botrytis blight, or gray mold) and powdery mildew. It also controls anthracnose; bacterial leaf blights, spots and specks; black mold; black spot (on roses); brown spot; fruit rot; and leaf spots. If you need a biofungicide/bactericide that prevents bacterial and fungal diseases from even establishing themselves on leaves, look no further than General Hydroponics Defguard Biofungicide/Bactericide.
$1187
Out of stock
10 days
HGC722077
General Hydroponics Defguard Biofungicide/Bactericide is an OMRI-listed biofungicide and bactericide for use in organic gardening that's effective against a variety of pathogens, particularly botrytis (which causes botrytis blight, or gray mold) and powdery mildew. It also controls anthracnose; bacterial leaf blights, spots and specks; black mold; black spot (on roses); brown spot; fruit rot; and leaf spots. If you need a biofungicide/bactericide that prevents bacterial and fungal diseases from even establishing themselves on leaves, look no further than General Hydroponics Defguard Biofungicide/Bactericide.
$2151
In stock
10 days
HGC732174
Diamond Nectar® accelerates nutrient absorption where mineral foods enter the plant. Diamond Nectar® applies the chelating action of humic acids to nutrient rich hydroponic environments by grabbing immobile and molecularly heavy compounds. They are transported through and into plant tissues for faster growth and greater yields. Diamond Nectar® supercharges your nutrients to optimize the health of your plants and the quality of your crops.
$30952
In stock
10 days
HGC732170
Diamond Nectar® accelerates nutrient absorption where mineral foods enter the plant. Diamond Nectar® applies the chelating action of humic acids to nutrient rich hydroponic environments by grabbing immobile and molecularly heavy compounds. They are transported through and into plant tissues for faster growth and greater yields. Diamond Nectar® supercharges your nutrients to optimize the health of your plants and the quality of your crops.
$7491
In stock
10 days
HGC732171
Diamond Nectar® accelerates nutrient absorption where mineral foods enter the plant. Diamond Nectar® applies the chelating action of humic acids to nutrient rich hydroponic environments by grabbing immobile and molecularly heavy compounds. They are transported through and into plant tissues for faster growth and greater yields. Diamond Nectar® supercharges your nutrients to optimize the health of your plants and the quality of your crops.
$1,13013