Liquid Concentrated Nutrient


• GH Flora Series is the original Building-Block Nutrient System – imitated but never duplicated.
• Contains complete Primary, Secondary and Micro Nutrients –for enhanced yields and better crop quality.
• Users can adjust mixtures to suit specific plant needs.
• Enhances flavor, nutrition, aroma and essential oils in both hydroponic and soil cultivated plants.
• Contains highly purified concentrates for maximum solubility.
• pH balanced for ease of use.
• NASA and Antarctic research scientists choose Flora Series -- because of its superior formulation and reliability.
• The General Hydroponics Flora Series is known throughout the world as the industry standard.

Stimulates structural and vegetative growth. Builds strong roots. Provides Nitrogen, Phosphorous, Potassium, and secondary minerals.

1 quart: $9.95, 1 gallon: $24.95, 2.5 gallon: $54.95, 6 gallon: $109.95


The foundation of the “Building-Block” System, Provides Nitrogen, Potassium, Calcium, and trace elements.

1 quart: $14.95, 1 gallon: $32.95, 2.5 gallon: $69.95, 6 gallon: $149.95


If your tap water is over 200 ppm (or contains Calcium above 70 ppm), use Flora Micro Hardwater. If your water contains 30 to 50 ppm Calcium, you can mix our original Flora Micro with Flora Micro Hardwater to create a perfect Micro blend for your plants.

1 quart: $14.98 1 gallon: $32.98


Stimulates flower and fruit development. Enhances flavor, aroma, and essential oils. Provides high Phosphorous, Potassium, Magnesium, and Sulfur.

1 quart: $9.95, 1 gallon: $24.95, 2.5 gallon: $54.95, 6 gallon: $109.95

Dry Concentrated Nutrient

This dry blend of minerals was specially designed to enhance the luscious flavors of tomatoes, peppers, cucumbers, eggplants, beans, melons, strawberries, and other continuously fruiting or flowering plants. FloraMato Dry is a stand-alone, fully water-soluble, dry nutrient. This unique combination of Primary and Secondary Nutrients with pH buffers keeps nutrients fully water-soluble and available to plants.

1.5LB: $12.95, 4LB: $29.98

Organic Based Supplement

Floralicious is a potent organic nutrient additive made from the best nature has to offer. A highly concentrated blend of bioactive microbial, plant, marine plants, and mineral extracts, Floralicious allows users to experience flavors, aroma, and yield like never before! And Floralicious is much more economical to use than the leading supplement. Guided by the latest scientific findings, our unique fermentation process creates a potent blend of phytostimulants and biometabolic precursors that enables Floralicious to bring out your plants full genetic potential. Floralicious augments metabolic activity in the root zone, stimulates Krebs cycle metabolism, and facilitates mineral transport and bioconversion. In addition, Floralicious enhances polyamine synthesis and encourages the biosynthesis of complex secondary aromatic compounds. Floralicious contains a perfect balance of vitamins, phytohormones, humic acids, polysaccharides, fructans, beta-glucans, L-amino acids, and polyflavonoids. Floralicious leads to hydroponics with flavor and incredible yields!
Organic Based Supplement

Floralicious Grow Enhances metabolic activities and nutrient assimilation that results in more vigorous growth. Builds the foundation of root and leaf mass needed for superior harvests.

1 quart: $25.95, 1 gallon: $77.95


Organic Based Supplement

Floralicious Bloom Promotes maximum flower size and fruit swelling for heavier yields. Offers phenomenal flavor and bouquet upon harvest. Leads to more coloration that is vibrant with an improved overall appearance.

1 quart: $25.95, 1 gallon: $77.95


Ripening Formula

• Encourages abundant flowering.
• Facilitates ripening in annuals.
• Boosts production of essential oils and fragrances.
• Increases size and weight of fruits and flowers.
• Precisely formulated to boost potency and enhance the performance of all types of nutrients.

KoolBloom is a highly concentrated nutrient additive that promotes abundant flowering and helps facilitate ripening in annual flowers and herbs. KoolBloom is rich in phosphorous and potassium, fortified by our own secret ingredients. This blend enhances production of essential oils and fragrances by mildly stressing plants during the formation of fruits and flowers. KoolBloom can be used as a nutrient additive during the second phase of reproductive growth, or as a stand-alone nutrient at the very end of a plant's life cycle. KoolBloom will result in larger, heavier fruits and flowers.

1 pound: $49.95

Dry Premium Organic Humic Acid

• Perfect for soil and other soil less growing medias

A pure, mined material that meets all organic standards for crop production, Diamond Black consists of the richest agronomically effective and organically certified plant-active humates. It is commonly understood that humates regulate the flow and enhance the transport of vegetative nutrients, and that they work best when applied continuously during the growing season. Diamond Black is significant because it is the only granular leonardite that has been proven soluble during a single season. Once it is blended with rooting media, Diamond Black will slowly break down and add humates to your plant's root environment.

3 pound: $14.95

Dry Premium Blend Organic Minerals & Humates

Rare Earth is derived from ancient seabed deposits of pyrophyllitic clay that are blended with fulvate ore. By slowly releasing silicon, humates, and organic rare earth minerals, Rare Earth allows a crystal matrix to develop within growing plant tissue that protects the plant from heat stress and nutrient extremes by generating a protective silicon shield. This also deters fungal disease and reduces susceptibility to insect damage by "hardening" the plant. Use Rare Earth by blending it with rooting media, and either top-dressing around the plant stem or adding it directly to nutrient solutions.

4 pound: $14.95

Liquid Premium Organic Humic Acid

Despite the low level of nutrients found in natural soil-based environments, plant growth nevertheless occurs because the smallest humic acids channel available nutrients directly into nearby vegetation. By accelerating nutrient absorption at the root boundary zone where minerals enter the plant, small particle sized humic acids optimize nutrient uptake in fast growing vegetation. Diamond Nectar applies the magic of the smallest available humic acids to nutrient rich hydroponic environments by grabbing these nutrient minerals and transporting them into plant roots for faster growth and higher yields. Diamond Nectar supercharges your nutrients in order to optimize the health of your plants and the quality of your crops.
Due to the natural nature of this organic product, variations in color may occur. Be assured each batch of Diamond Nectar is tested for consistent quality and results you can count on.

1 quart: $14.95, 1 gallon: $39.95

Plant and System Rinse

• Maintain healthy roots without resorting to harsh, toxic chemicals.

• FloraShield's unique combination of compounds can thoroughly rinse systems and plants during all phases of the life cycle.

• Its mode of action makes General Hydroponics FloraShield safe to use on and around actively growing plants at all stages of growth.

• Growers around the globe attest to FloraShield's ability to solve root rot problems.

1 quart: $24.95, 1 gallon: $69.95

Salt Clearing Solution

• Dissolves accumulated fertilizer salts.
• Reduces plant stress from excess and imbalanced nutrients.
• Releases nutrient bonds between plants and systems, also correcting nutrient lock-out.
• Use FloraKleen as a final flush a few days before harvest to promote maturation and sugaring.
• Safe for use in all systems and media while plants are growing.

General Hydroponics 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 at any time to dissolve mineral and salt buildup. Its high concentration and low price make FloraKleen the economical choice for maintaining your plants in both hydroponic and soil-based environments.

1 quart: $8.95, 1 gallon: $19.95, 2.5 gallon: $47.95

pH Adjusting Solutions

To maximize plant growth, the pH of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or when pH unstable media – such as rock wool or gravel products – are used, or when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.
pH Adjusting Solution

The Acid formulation uses food grade Phosphoric acid to lower the pH to the proper level.

1 quart: $12.95, 1 gallon: $29.95

phUP pH UP™
pH Adjusting Solution

This Base solution is formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level.

1 quart: $12.95, 1 gallon: $29.95

Meter Calibration Solution

General Hydroponics uses the highest quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl scale or the 442 scale). General Hydroponics technicians check each batch to ensure that our solutions are precisely calibrated and yield reliable readings each time they are used.

8 oz: $6.95, 1 quart: $24.95