Additives

Additives

  • 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
  • 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

    $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-Mag Plus, 1 qt

    Botanicare

    $21.21
    A custom-designed, highly-beneficial calcium, magnesium, iron, and trace mineral plant nutrient supplement that helps with calcium, magnesium, and iron deficiencies in nutrient fertilizer programs. 
    $21.21
  • Coast of Maine Earthworm Castings

    Coast of Maine Earthworm Castings

    Coast Of Maine

    $16.99
    Welcome to organic gardening made easy! Coast of Maine Organic Products offers what we believe are the most unique and effective organic gardening products available. Our organically approved, compost-based soils, enriching mulches,...
    $16.99
  • Coast of Maine Fish Bone Meal Buds and Blooms

    Coast of Maine Fish Bone Meal Buds and Blooms

    Coast Of Maine

    $15.99
    Fish Bone Meal (5-13-0) with 1% Calcium   Uses: A source of phosphorus, calcium, nitrogen and essential minerals for budding and blooming plants.   Coast of Maine Organic Products Fish Bone Meal is suitable for fertilizing bulbs,...
    $15.99
  • 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

    $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

    $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
  • Europonic Rockwool Conditioning

    Hydrodynamics International

    $9.95
    Blend of pH controls and pure mineral salts, Europonic Rockwool Conditioning Solution is ideal for pre-conditioning rockwool and stonewool growing media products before starting seeds, clones and transplants.
    $9.95
  • EZ-Clone Clear Rez 8 oz.

    $11.95
    EZ-CLONE Clear Rez™ is a pH-balanced, non-invasive water treatment designed to keep all of the internal workings of your cloning system crystal clear and operating at peak performance. It is designed to be used through out your entire...
    $11.95
  • 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.

    $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

    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 Down, 1 Gal

    $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 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