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Fertilizer and Plant Food

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Humboldt County's Own G10 - Qt

This product is made up of a proprietary kelp extract and is a "flower finisher." The claims however are extremely vague. Start using this from the 3rd week of flowering all the way to the end. Does not contain Plant Growth Regulators(PGRs)

Humboldt County's Own G10 - Qt

$60.81

General Hydroponics GH pH Up - qt

For plants to grow their best it's important that the nutrient pH be slightly acidic - the range of 5.5 to 6.5 is considered ideal for most crops. The General Hydroponics pH Up (Base) is formulated using Potassium Hydroxide and Potassium Carbonate which a

$15.68

General Hydroponics GH pH Up - gal

For plants to grow their best it's important that the nutrient pH be slightly acidic - the range of 5.5 to 6.5 is considered ideal for most crops. The General Hydroponics pH Up (Base) is formulated using Potassium Hydroxide and Potassium Carbonate which a

$39.06

General Hydroponics GH Koolbloom Liquid qt

Gardeners can give plants a boost during the final phases of fruiting and flowering with KoolBloom (0-10-10). A reformulation of the popular dry supplement, KoolBloom Liquid virtually eliminates the mess and hassle of mixing. Designed for use in the se

GH Koolbloom Liquid qt

$30.18

General Hydroponics GH Floranova Grow - qt

Flora Nova is the breakthrough gardeners have been waiting for: an exceptionally potent, complete one-part fertilizer plus organic additives. Extremely concentrated, Flora Nova is an excellent bargain, one to two teaspoons in a gallon of water. One bot

GH Floranova Grow - qt

$36.39

General Hydroponics GH Floranova Bloom - qt

Flora Nova is the breakthrough gardeners have been waiting for: an exceptionally potent, complete one-part fertilizer plus organic additives. Extremely concentrated, Flora Nova is an excellent bargain, one to two teaspoons in a gallon of water. One bot

GH Floranova Bloom - qt

$36.39

Botanicare Botanicare Cal-Mag Plus - qt

Cal-Mag Plus is a highly fortified calcium, magnesium and iron plant supplement formulated to correct common deficiencies. Supplementing your preferred nutrient program with Cal-Mag Plus is strongly recommended when using reverse osmosis water and when gr

Botanicare Cal-Mag Plus - qt

$24.13

Rhizoflora Terpinator 4 Liter

Terpinator is formulated to increase the concentration of terpenoids in aromatic plant oils and glands. The unique composition of Terpinator provides the basic building blocks plants required to produce flavorful oils. By using naturally occurring plant a

Terpinator 4 Liter

$81.36

General Hydroponics GH Floralicious Plus - pt

Floralicious Plus is a vegan bio plant stimulator and nutrient additive. It is everything that is Floralicious except it has been formulated to be applied in both the vegetative and regenerative or the flowering stages of growth. It has five times the con

GH Floralicious Plus - pt

$43.84

General Hydroponics GH Flora Kleen gal

Flora Kleen is a new break through cleaning flush solution from General Hydroponics. Flora Kleen is formulated to remove fertilizer residue that can accumulate in hydroponic systems, growing media, and potting soils over time. Use Flora Kleen monthly to m

GH Flora Kleen gal

$30.99

Technaflora Technaflora BC Bloom - 4L

B.C Hydroponic Nutrients are a power-packed trio for nurturing generous vegetative crops and extraordinary floral growth. B.C Boost, B.C Bloom, and B.C Grow are complete, professionally formulated, highly concentrated fertilizing agents. Unlike other bran

Technaflora BC Bloom - 4L

$47.99

$28.80

General Hydroponics GH CaMg+ qt

CaMg+ is the ideal supplement to provide a natural source of Calcium and Magnesium, critical elements in a plant's growth cycle. These elements are often absent in many fertilizers and potting mixes, resulting in stunted growth. CaMg+ is biologically cata

$22.26

General Hydroponics GH CALiMAGic Calcium and Magnesium Gal

CALiMAGic 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 development

GH CALiMAGic Calcium and Magnesium Gal

$62.93

General Hydroponics GH Bioroot qt

BioRoot is a natural root growth supplement that helps plants establish healthy and vibrant root systems. It contains vitamins, enzymes, organic and humic acids that stimulate root growth. BioRoot is outstanding for seedlings and cuttings, helping young p

$23.17

$13.91

General Hydroponics GH Bioroot gal

BioRoot is a natural root growth supplement that helps plants establish healthy and vibrant root systems. It contains vitamins, enzymes, organic and humic acids that stimulate root growth. BioRoot is outstanding for seedlings and cuttings, helping young p

$70.17

$42.11

Down To Earth Down To Earth Bat Guano (7-3-1) - 2 lb

The undisputed champion of organic fertilizers, Bat Guano is rich in readily available Nitrogen, Phosphorus and micronutrients and provides essential plant nutrition for vigorous vegetative growth and early fruit and flower development. Bat Guano is fast

Down To Earth Bat Guano (7-3-1) - 2 lb

$18.99

Advanced Nutrients Advanced Sensizym 4L

Adding Enzymes to Your Root Zone Is a Great IdeaEnzymes are organic catalysts, which means theyâ€™re great at getting things going. One thing they do in your root zone is break down organic debris. Use Sensizym right now to get three different types of en

Advanced Sensizym 4L

$134.92

$80.96

Advanced Nutrients Advanced Sensizym 1L

Adding Enzymes to Your Root Zone Is a Great IdeaEnzymes are organic catalysts, which means theyâ€™re great at getting things going. One thing they do in your root zone is break down organic debris. Use Sensizym right now to get three different types of en

Advanced Sensizym 1L

$43.34

$26.01

Advanced Nutrients Advanced Rhino Skin 1L

Give your plants Rhino Skin to increase the rigidity of the cell walls making your plants stalks more rigid. Plants take silicon into their cells making tougher cell walls.

Advanced Rhino Skin 1L

$41.39

Advanced Nutrients Advanced Nirvana 1L

This is Your Best Choice for an All-Natural Flower BoosterYour flowers get larger in size and higher in quality when you feed them Nirvana. Not only that, Nirvana helps plants like yours because during bloom phase they have a high carbohydrate turnover an

Advanced Nirvana 1L

$31.88

$19.13

Foxfarm FoxFarm Grow Big Hydro - qt

Fox Farm's Grow Big Hydroponic (3-2-6) delivers all the nutrients necessary for healthy vegetative plant growth to hydroponically-grown plants. Hand-crafted in small batches for a consistent, high-quality solution. Contains premium select earthworm castin

FoxFarm Grow Big Hydro - qt

$30.99

Foxfarm FoxFarm Cha Ching 1 lb

Every stage of the growing cycle demands optimal nutrition. Cha Ching is a high-phosphorus fertilizer that is designed to help support late stage fruiting processes. Even better, FoxFarm included the micronutrient package that they are known for.

FoxFarm Cha Ching 1 lb

$52.99

$31.80

Advanced Nutrients Advanced B-52 - 1L

B Vitamin SupplementUse this ever-popular formula in the demanding conditions of your high-intensity garden. This proprietary blend provides unique, powerful 100% guaranteed nutritional and vitamin support so your plants are always winners.

Advanced B-52 - 1L

$60.86

BuildASoil BuildASoil BuildAVeg Vegetative Plant Booster - 1 lb

Designed from our using all of our favorite products together, we finally found a way to mix this in batches and bag it for home use.

BuildASoil BuildAVeg Vegetative Plant Booster - 1 lb

$40.00