Additives

Additives

  • Alchemist PH Down 1Qt.

    Alchemist PH Down 1Qt.

    Alchemist

    $18.95
    Alchemist pH Down is comprised of very pure, food safe ingredients. This unique buffer is non-toxic, non-corrosive and non-hazardous making it like no other pH buffer on the market. Alchemist pH Down Non-Corrosive will not increase the conductivity of...
    $18.95
  • Alchemist PH Up 1 Qt.

    Alchemist PH Up 1 Qt.

    Alchemist

    $13.95
    Alchemist pH Up is comprised of very pure, food safe ingredients. This unique buffer is non-toxic, non-caustic and non-hazardous making it like no other pH buffers on the market. Alchemist pH Up Non-Caustic will not increase the conductivity of your...
    $13.95
  • Azos  Beneficial Bacteria 6oz Azos  Beneficial Bacteria 6oz

    Azos Beneficial Bacteria 6oz

    Xtreme Gardening

    $32.99
    Azos is a naturally occurring bacteria that promotes plant growth. Azos converts nitrogen into a usable form that is readily available to the plant. Nitrogen is critical for forming vegetative matter and supporting abundant growth. Azos promotes growth,...
    $32.99
  • Bluelab 7.0 pH Calibration Solution, 20 ml

    Bluelab 7.0 pH Calibration Solution, 20 ml

    bluelab

    $2.20
    Calibration and conductivity standard solutions... a must in every grower's toolbox. The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the...
    $2.20
  • Cal-Max 1qt

    Cal-Max 1qt

    Growtek

    $13.95
    During periods of high temperatures and accelerated growth, plants can develop nutrient deficiencies, which are preventable. Cal-Max™ was developed to provide the additional calcium, magnesium and iron needed to support peak production...
    $13.95
  • Coast of Maine Alfalfa Meal Soil Builder Coast of Maine Alfalfa Meal Soil Builder

    Coast of Maine Alfalfa Meal Soil Builder

    Coast Of Maine

    $16.99
    Uses: As a top dressing on annuals, vegetables, perennials and flowering shrubs (but not acid-lovers like rhododendrons and azaleas).   Coast of Maine Organic Products Alfalfa Meal is a soil conditioner that increases the amount of organic...
    $16.99
  • Coast of Maine Kelp Meal All Purpose Coast of Maine Kelp Meal All Purpose

    Coast of Maine Kelp Meal All Purpose

    Coast Of Maine

    $16.99
    Kelp Meal ( 1 – 0 – 1 ) with 1% Calcium   Uses: As a top dressing around trees and shrubs and houseplants. May also be sprinkled on lawns, mixed into garden beds or used in planting holes. It can also be made into a tea...
    $16.99
  • Coast of Maine Lobster Compost 1cf Coast of Maine Lobster Compost 1cf

    Coast of Maine Lobster Compost 1cf

    Coast Of Maine

    $11.99
    Uses: Planting amendment for conditioning flower beds and borders, vegetable gardens, herbs and annuals   Coast of Maine Organic Products Quoddy Blend Lobster Compost is made with chitin and calcium-rich lobster shells, compost and sphagnum...
    $11.99
  • Earth Juice Elements Cal-N-Mag

    Earth Juice Elements Cal-N-Mag

    $9.99
    For use with planting mixes, native soils and as a hydroponic additive. Elements Cal-n-Mag is a calcium and magnesium formula developed for plants to help prevent and treat calcium and magnesium deficiencies. For use as a calcium and magnesium booster or...
    $9.99
  • GH Armor Si, 1 qt

    GH Armor Si, 1 qt

    General Hydroponics

    $15.80
    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...
    $15.80
  • GH CALiMAGic, 1 Gal.

    GH CALiMAGic, 1 Gal.

    $44.07
    CALiMAGicTM 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...
    $44.07
  • GH CALiMAGic, 1 qt

    GH CALiMAGic, 1 qt

    General Hydroponics

    $17.50
    CALiMAGicTM 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...
    $17.50
  • GH pH Control Kit

    GH pH Control Kit

    General Hydroponics

    $18.74
    Hydroponic PH Control Kit By General Hydroponics The convenient General Hydroponics pH Control Kit includes everything you need to test your hydroponic solution as well as adjust it if needed, and it even comes with a convenient nutrient availability...
    $18.74
  • GH pH Down, 1 Gal

    GH pH Down, 1 Gal

    $26.50
    To maximize plant growth, the pH content 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...
    $26.50
  • GH pH Up, 1 gal

    GH pH Up, 1 gal

    General Hydroponics

    $26.90
    To maximize plant growth, the pH content 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...
    $26.90
  • GH pH Up, 1 qt

    GH pH Up, 1 qt

    General Hydroponics

    $10.76
    To maximize plant growth, the pH content 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...
    $10.76