Best Fertilizer For Hydroponic Plants in 2022 [*Top Picks*]

Looking for the best fertilizer for hydroponic plants on the market? We’ve got you covered. Check out our ratings of absolute bestsellers below and make a final decision.

8218 Reviews Scanned

  • Liqui-Dirt Nano Powder All-Purpose Organic Complete Plant Food for Indoor or Outdoor Use (Makes over 50 gallons) 18 Balanced Super Foods -Balanced Blend of Vitamins Minerals Micro-Fungi and Bio-Organisms
    Bestseller #1
    Liqui-Dirt Nano Powder All-Purpose Organic Complete Plant Food for Indoor or Outdoor Use (Makes over 50 gallons) 18 Balanced Super Foods -Balanced Blend of Vitamins Minerals Micro-Fungi and Bio-Organisms (456)
      BENEFITS: Makes 6400 applications for house plants. (Makes 50 gallons, Each gallon makes 128 applications) Its like a full ecosystem in a bottle that is a concentrated formula for watering your plants its easy, 1. 2. 3. and your ready to go. Great for all soil and growing medias, hydroponics, semi hydro, lecca, Bavariums with reptiles, terrariums, water gardens and fish tanks, flowers and so much more. Good For Roots, Stems, Leaves, Blooms, Foliage, and over all plant health. WHAT IS IT? All Natural Fully Digested Elemental, Nutrient Supplement System for all plants. All vitamins and minerals with the microbial index are essential to a plants life. Complete Micro-fungi mycorrhizae and rhizobacteria strains, in a pH Balanced formula. HOW ITS MADE: Through our Zymology process we break down the 18 ingredients into thousands of separate fully digested and readily absorbable elements. This full nutrition can take over 5 years to complete before we bottle it up for you. WHATS IN IT: 18 Balanced Super Nutrients For Plants Including Poultry Litter, Rabbit Manure, Bat Guano, Cricket Fras, Humic Shale, Worm Castings, Oyster Shell, Mycorrhizae, Dolomite limes, Kelp Meal, Gypsum, Alfalfa meal, Concentrated Fulvic Acid, Blood meal, Proprietary mineral blend from organic sources. HOW LONG DOES IT LAST: This product does not expire, in any dilution or concentrated form. Our powder is made to react immediately in the water you add to grow happy healthy plants. Don't be fooled by other liquids that promise and under deliver, Our full concentrate puts you in command of how much to use for each plant without concern of harming your plants. WHY USE IT: Use Liqui-Dirt to Increase growth and nutrition for Roots, Stems, Leaves, Blooms, Foliage,and over all plant health, all plants Indoor Houseplants to Gardens even Lawns. Yes Flowers, Trees and Shrubs too! Give your plants the nutrition they deserve. Unlike other watered down fertilizers on the market we don't charge you for water, only the good stuff your plants deserve to help them thrive. HOW WE'RE DIFFERENT: 100% Pet / Fish / Reptile Safe, No odors, No Chemicals, Non-GMO, Naturally Organic. Proudly Made by hand in the USA. From Our farm to you, and simply put Liqui-Dirt WORKS! Liqui-Dirt is all you need. There is no need to mix with other fertilizers or systems. Liqui-Dirt is all you need. There is no need to mix with other fertilizers or systems.
  • General Hydroponics FloraGro 2-1-6, Use With FloraMicro & FloraBloom, Provides Nutrients For Structural & Foliar Growth, Ideal For Hydroponics, 1-Quart
    Bestseller #1
    General Hydroponics FloraGro 2-1-6, Use With FloraMicro & FloraBloom, Provides Nutrients For Structural & Foliar Growth, Ideal For Hydroponics, 1-Quart (49)
      General Hydroponics FloraGro 2-1-6 delivers nutrients for structural and foliar growth Combine FloraGro 2-1-6 with FloraMicro and FloraBloom to create a nutrient mix tailor-made for your plants and their phase of growth (seedling, cutting, structural, flowering, or fruiting) Ideal for hydroponic applications and as a nutrient supplement for potted plants To ensure the best results, always add FloraMicro to fresh water first, stir well, then add FloraGro and/or FloraBloom Contains an N-P-K of 2-1-6
  • iDOO Indoor Plant Food (400ml in Total), All-Purpose Concentrated Fertilizer for Hydroponics System, Potted Houseplants
    Bestseller #1
    iDOO Indoor Plant Food (400ml in Total), All-Purpose Concentrated Fertilizer for Hydroponics System, Potted Houseplants (1744)
      Compatible with all iDOO Hydroponic Systems. The package comes with 100ml Bottle A, 100ml Bottle B, 100ml Refill-pack A, 100ml Refill-pack B. Also great for indoor and outdoor plants including shrubs, trees, vegetables, and herbs. Fill up with 100ml of water to the nutrient particles in concentrated solution. Contains macro and trace elements required by plants, perfect for seedlings, vegetative growth and flowering. Organic-based houseplant fertilizer is safe for pet-friendly and safe to use.
  • Dosatron Inline Fertilizer, Insecticide, and Fungicide Injector for Irrigation and Hydroponic Systems - (Fixed Ratio 1:100)
    Bestseller #1
    Dosatron Inline Fertilizer, Insecticide, and Fungicide Injector for Irrigation and Hydroponic Systems - (Fixed Ratio 1:100) (207)
      WATER POWERED dosing technology means no electricity is needed to function, perfect for irrigation and hydroponic systems. PRECISION DOSING will ensure that your waterings are not over or under feeding the crops. 11 GPM FLOW RATE with pressures up to 85 PSI will get your fertilizers, insecticides, algicides, fungicides, and more where they need to go. POLYACETAL (POM) HOUSING is extremely resilient and weather resistant. This material often replaces metal and steel in industry due it's corrosion proof properties. COMPLETE KIT included 6mm suction hose, mounting bracket, weighted strainer, and quick start guide. You'll be up and running in no time.
  • Liquid Plant Food Hydroponic Nutrients [8 oz] – Hydroponic Fertilizer with pH Stabilizer for Better Absorption – Easy-Pour, No-Drip Container – Plant Nutrients & Hydroponic Plant Food by Urban Leaf
    Bestseller #1
    Liquid Plant Food Hydroponic Nutrients [8 oz] – Hydroponic Fertilizer with pH Stabilizer for Better Absorption – Easy-Pour, No-Drip Container – Plant Nutrients & Hydroponic Plant Food by Urban Leaf (224)
      🌱 LIQUID PLANT FOOD: All-round hydroponic nutrient solution suitable for AeroGardens, NFT, Kratky, Ebb & Flow, Drip systems and more. Easy-measure no-drip bottle. Get it in the system, not all over your hands and the floor. 🌱ALL IN ONE NUTRIENT SOLUTION: Includes a powerful pH stabilizer, which means water chemistry is maintained for longer making it easier for your plants to absorb the nutrients they need. 🌱 SUITABLE FOR AEROGARDEN: This blend works well with Aero Garden, and the back of the bottle contains recommended amounts for all AeroGarden models. 🌱 CHECK OUT THE REVIEWS: Ward writes: 5.0 out of 5 stars. Better than Original. I have refilled my Aero garden with their propriety liquid twice. Took a chance on this brand and my results have been AWESOME! My cilantro and basil both have giant leaves and taste wonderful!!! Thanks so much. All future refills will be through you all. 🌱 VISIT US ON AMAZON: Urban Leaf specializes in beginner-friendly indoor gardening products. Check out our full range by clicking the company name link on the top of this listing.
  • General Hydroponics MaxiGro Plant Food For Vigorous Growth, 50 lb
    Bestseller #1
    General Hydroponics MaxiGro Plant Food For Vigorous Growth, 50 lb (386)
      Complete in primary, secondary and micro nutrients Provides superior results on a wide variety of crops For use in soil and hydroponic grows
  • General Hydroponics Flora Grow, Bloom, Micro Combo Fertilizer Set, 1 pint (Pack of 3)
    Bestseller #1
    General Hydroponics Flora Grow, Bloom, Micro Combo Fertilizer Set, 1 pint (Pack of 3) (95)
      General Hydroponics 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
  • Hydroponic Nutrients for Hydroponic Growing System, FAFAGRASS Liquid Fertilizer for Indoor Garden, Liquid Plant Food for Plants in Grow Sponges, Hydroponic Fertilizer (3.5oz)
    Bestseller #1
    Hydroponic Nutrients for Hydroponic Growing System, FAFAGRASS Liquid Fertilizer for Indoor Garden, Liquid Plant Food for Plants in Grow Sponges, Hydroponic Fertilizer (3.5oz) (41)
      Liquid fertilizer for hydroponic growing system, not eatble Works in all Hydroponic indoor garden as well as outdoor plants, perfect for root growth, flowering and fruiting. Additional nutrients for your indoor garden. 250 times concentrated nutrients, 1 bottle for all growing needs Contains macro and trace elements required by plants, perfect for seedlings, vegetative growth and flowering. Highest quality and easy to apply, Every ingredient and every process was designed to keep sustainability in mind, nutrient chooses only the best and most renewable materials. And it doesn't require complex applications. Just mix a small amount of it with water Follow the label for the right ratio. For best results, use every 1-2 weeks.
  • Maxsea HGC722260 All Purpose 16-16-16 Hydroponic Nutrient Fertilizer, 20 lb, Brown/A
    Bestseller #1
    Maxsea HGC722260 All Purpose 16-16-16 Hydroponic Nutrient Fertilizer, 20 lb, Brown/A (47)
      Maxsea All Purpose Plant Food is designed for year round use on all plants, indoors and outdoors Made from galvanized Steel Extended collar for easy duct connection
  • Hydroponics Growing System Accessories, A+B Plant Food Suitable for Most Hydroponic Planting Systems
    Bestseller #1
    Hydroponics Growing System Accessories, A+B Plant Food Suitable for Most Hydroponic Planting Systems (22)
      Planting cotton: Using bio-charcoal mud as raw material, it will not pollute the environment after use, which is very environmentally friendly. Cannot be reused. Planting basket: PP material A+B nutrient solution: plant nutrient solution, which needs to be melted before use. Blister cover: It is used to maintain temperature and promote germination when plants germinate. It is suitable for most hydroponic planting systems on the market, please pay attention to check whether the size is suitable before buying. Convenience garden: The indoor garden can support you to grow organic vegetables. Not only can you enjoy the fun of planting, you can also enjoy healthy vegetables at home.
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