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  • Grow Lights
  • Grow Rooms
  • Climate
  • Nutrients
  • Hydroponics
  • Farm Shop
  • Gardening
  • On Sale
  • New Products
  • Staff Picks
  • Commercial

    • Shop by Brand

  • General Hydroponics
  • Hydrofarm
  • Advanced Nutrients
  • Botanicare
  • CANNA
  • Titan Controls
  • Fox Farm
  • Sunleaves
  • Activa Aqua
  • PLAGRON
  • View all Brands

    • Emerald Harvest

    • Quick view

      King Kola 0.3 - 2 - 3, 1 QT

      Get the most benefit from every flower in your garden with Emerald Harvest® King Kola®. A powerful bloom booster designed to create bigger, denser blossoms, King Kola® provides the essential elements your crops need to burst forth in heavy...

      $34.95
      Add to Cart
    • Quick view

      Emerald Harvest Cali Pro Bloom A 32oz

      Reach the full genetic potential of your crops with Emerald Harvest® Cali Pro® Grow A & B and Cali Pro® Bloom A & B, our complete 2-part base nutrient series. Cali Pro® is a nitrogen-rich fertilizer that nourishes your high-yield,...

      $16.00 $15.95
      Add to Cart
    • Quick view

      Emerald Harvest Cali Pro Bloom B 32oz

      Reach the full genetic potential of your crops with Emerald Harvest® Cali Pro® Grow A & B and Cali Pro® Bloom A & B, our complete 2-part base nutrient series. Cali Pro® is a nitrogen-rich fertilizer that nourishes your high-yield,...

      $16.00 $15.95
      Add to Cart
    • Quick view

      Emerald Harvest Cali Pro Grow A 32oz

      Reach the full genetic potential of your crops with Emerald Harvest® Cali Pro® Grow A & B and Cali Pro® Bloom A & B, our complete 2-part base nutrient series. Cali Pro® is a nitrogen-rich fertilizer that nourishes your high-yield,...

      $16.00 $15.95
      Add to Cart
    • Quick view

      Emerald Harvest Cali Pro Grow B 32oz

      Reach the full genetic potential of your crops with Emerald Harvest® Cali Pro® Grow A & B and Cali Pro® Bloom A & B, our complete 2-part base nutrient series. Cali Pro® is a nitrogen-rich fertilizer that nourishes your high-yield,...

      $16.00 $15.95
      Add to Cart
    • Quick view

      Honey Chome 0.5 - 0.5 - 1, 1 QT

      Intensify fragrance and flavor in your plants with Honey Chome®, a resin and aroma enricher from Emerald Harvest®. Designed to enrich your valuable crops with a robust bouquet and plenty of resins during the flowering phase. This rich formulation...

      $28.95
      Add to Cart
    • Quick view

      Emerald Goddess 2 - 1 - 4, 1 QT

      Nurture your valuable crops with Emerald Goddess®, an invigorating plant tonic from Emerald Harvest®. We’ve taken Mother Nature’s best naturally occurring elements and other components and purified and refined them into a superlative...

      $34.95
      Add to Cart
    • Quick view

      Root Wizard, 1 QT

      The beneficial bacteria in this microbial inoculant colonize the rhizosphere of your crops. While soil gardens naturally contain myriad microbes that enhance root vigor and boost nutrient uptake, Root Wizard® supplies your soilless garden, which...

      $67.95
      Add to Cart
    • Quick view

      EH Cal-Mag 128oz

      Keep your plants productive and green with Cal-Mag, a calcium and magnesium supplement from Emerald Harvest®. Containing top-quality ingredients, Cal-Mag is designed to nourish crops with extra calcium and magnesium and create the right conditions...

      $51.95
      Add to Cart
    • Quick view

      EH Cal-Mag 32oz

      Keep your plants productive and green with Cal-Mag, a calcium and magnesium supplement from Emerald Harvest®. Containing top-quality ingredients, Cal-Mag is designed to nourish crops with extra calcium and magnesium and create the right conditions...

      $16.95
      Add to Cart
    • Quick view

      EH Cali Pro Bloom A Gallon

      Reach the full genetic potential of your crops with Emerald Harvest® Cali Pro® Bloom A & B and Cali Pro® Grow A & B, our complete 2-part base nutrient series. Cali Pro® is a nitrogen-rich fertilizer that nourishes your high-yield,...

      $39.95
      Add to Cart
    • Quick view

      EH Cali Pro Bloom B Gallon

      Reach the full genetic potential of your crops with Emerald Harvest® Cali Pro® Bloom A & B and Cali Pro® Grow A & B, our complete 2-part base nutrient series. Cali Pro® is a nitrogen-rich fertilizer that nourishes your high-yield,...

      $39.95
      Add to Cart
    • Quick view

      EH Cali Pro Grow A Gallon

      Reach the full genetic potential of your crops with Emerald Harvest® Cali Pro® Grow A & B and Cali Pro® Bloom A & B, our complete 2-part base nutrient series. Cali Pro® is a nitrogen-rich fertilizer that nourishes your high-yield,...

      $39.95
      Add to Cart
    • Quick view

      EH Cali Pro Grow B Gallon

      Reach the full genetic potential of your crops with Emerald Harvest® Cali Pro® Grow A & B and Cali Pro® Bloom A & B, our complete 2-part base nutrient series. Cali Pro® is a nitrogen-rich fertilizer that nourishes your high-yield,...

      $39.95
      Add to Cart
    • Quick view

      EH Emerald Goddess 128oz

      Nurture your valuable crops with Emerald Goddess®, an invigorating plant tonic from Emerald Harvest®. We’ve taken Mother Nature’s best naturally occurring elements and other components and purified and refined them into a superlative...

      $129.95
      Add to Cart
    • Quick view

      EH King Kola 128oz

      Get the most benefit from every flower in your garden with Emerald Harvest® King Kola®. A powerful bloom booster designed to create bigger, denser blossoms, King Kola® provides the essential elements your crops need to burst forth in heavy...

      $129.95
      Add to Cart
    • Quick view

      EH Sturdy Stalk 128oz

      Build up your plant cell walls and encourage productivity with Sturdy Stalk®, a potassium silicate supplement from Emerald Harvest®. Sturdy Stalk’s key ingredient—silica—fortifies your plants and enriches the internal structures...

      $77.95
      Add to Cart
    • Quick view

      EH Sturdy Stalk 32oz.

      Build up your plant cell walls and encourage productivity with Sturdy Stalk®, a potassium silicate supplement from Emerald Harvest®. Sturdy Stalk’s key ingredient—silica—fortifies your plants and enriches the internal structures...

      $27.95
      Add to Cart
    • Quick view

      Emerald Harvest Bloom 32oz

      Give your crops what they need when they need it most with Emerald Harvest® Grow, Micro, Bloom 3-part base nutrient series. Grow, Micro, Bloom supplies plants with precise nutrient formulations that deliver the right amounts of nitrogen, phosphorus...

      $16.00 $14.95
      Add to Cart
    • Quick view

      Emerald Harvest Grow 32oz

      Give your crops what they need when they need it most with Emerald Harvest® Grow, Micro, Bloom 3-part base nutrient series. Grow, Micro, Bloom supplies plants with precise nutrient formulations that deliver the right amounts of nitrogen, phosphorus...

      $16.00 $14.95
      Add to Cart
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