Sale
$17.03
TDS Calibration Solution for use with TDS testers measuring 1500 PPM. Note: Not for use with Milwaukee (Sharp) meters.
Sale
$14.48
A few minutes and a small amount of this balanced pH Calibration Solution 4.01 are all growers need to adjust their pH meter and secure accurate nutrient solution readings. Available in an eight-ounce bottle.
Sale
$24.15
Azamax is a broad-spectrum organic insecticide that controls pests like mites, aphids, whiteflies, caterpillars, thrips, grasshoppers and more! Its active ingredient, a natural derivative of the neem tree, is safe enough for application in any high-traffic area. It's also great as an additive to other insecticides, as it makes pests more vulnerable to them.
Sale
$12.99
Use this completely organic fish fertilizer to speed up a plant’s growth, improve its color and help increase its resistance to pests. The essential oils, proteins and nutrients found in BioMarine (2-3-1) support healthy growth and stimulate microbiology that naturally improves soil integrity. Dynamic in its uses, it can be applied at any growth stage and with or without other fertilizers.
Sale
$15.25
Seedlings and cuttings will get a jumpstart from BioRoot Root Boosters vitamins, enzymes, organic and humic acids. This formula helps young plants take hold with strong and massive root systems, and helps more established plants maintain their health. Use with any potting mix, garden soil or other growing media. This size is available by special order only.
Sale
$16.02
BioThrive Bloom vegan plant food (2-4-4) is specifically developed for all plants in the blooming stage.  After use, gardeners can expect bigger blossoms, juicier fruits and more seeds.
Sale
$13.99
Best for use during the vegetative phase, BioThrive Grow (4-3-3) is custom designed to create a strong and nutritious base for optimal flower, fruit and seed development. This custom blend is packed with nutrition and will give plants the custom diet they need for sturdy root and foliage development.
Sale
$14.99
Cold-processed seaweeds provide the nutrients in General Organics’ BioWeed (0.2-0-0.3). The plant-boosting power naturally found in this vegetation of the sea will help plants achieve great heights and depths through prolific foliage growth and root development as well as produce larger fruits and flowers.
Sale
$13.22
CALiMAGic™ calcium magnesium supplement works to get the most out of plants by optimizing plant nutrition, enhancing plant growth and development, and preventing blossom end rot and tip burn in various calcium intensive plants like lettuce and tomatoes. This concentrated blend of readily available calcium and magnesium is formulated to assist fast-growing plants by preventing secondary nutrient deficiencies. The formula is clean, fully soluble and will not clog spray lines or drip emitters, and is safe to use when combined with many other fertilizers.
Sale
$14.07
Add Diamond Nectar (0-1-1) to nutrient solutions or soil and foliar fertilizers to release its high-quality humic acid, an important humate that assists in nutrient uptake. Achieve increased vitality, greater stress resistance and higher-quality crop yields.
Sale
$17.37
This Float Valve makes sure that reservoir water is always on the level. Valve and attached barbed fitting feature durable construction from General Hydroponics. For multiple-site hydroponics gardens, a master reservoir saves maintenance time. You can begin building their own systems using this hassle-free, Gravity-fed Float Valve Assembly. Includes plastic float, sturdy brass arm, valve and 3/8" barbed fitting for years of reliable use.
Sale
$22.86
Containing no animal by-products, General Hydroponics FloraBlend (0.5-1-1) is a unique vegan compost tea that promotes vigorous root growth. Seaweed, rock powders and leonardite compliment the nutrient-rich ferment created by the beneficial composting microorganisms. This super soluble application is excellent for hydroponic hobbyists growing organically. Highly stable product has an indefinite shelf life.