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Hydroponic & Organic Gardening

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General Hydroponics GH pH Test Kit

Maintaining the proper pH of your fertilizer solution is critical to a crop's ability to utilize nutrients. The roll of pH Papers and General Hydroponics' pH Test Kit are inexpensive and reliable ways to test pH. For the pH paper, simply take a piece and

$8.63

General Hydroponics GH pH Down - 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. Our own pH Down is made with phosphoric acid. There are many pH down products on the market, but you get mo

GH pH Down - Qt

$15.99

General Hydroponics GH pH Down - Gal

The acid formulation uses food-grade phosphoric acid to lower the pH to the proper level.

GH pH Down - Gal

$39.06

General Hydroponics GH Maxigro 2.2 lb Pouch

MaxiGro (10-5-15) is a strong one-part dry nutrient gardeners use to start plants and to promote fast growth during the vegetative stage. It improves plant yield and is pH buffered to help reduce pH drift. MaxiGro is easy-to-use and works well in hydropon

GH Maxigro 2.2 lb Pouch

$21.72

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 Koolbloom Liquid gal

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 gal

$79.93

General Hydroponics GH Koolbloom Liquid 2.5 gal

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 2.5 gal

$171.31

$102.79

General Hydroponics GH Floranova Grow - gal

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 - gal

$116.60

$69.96

Botanicare Botanicare PB PRO Bloom Soil qt

Designed specifically to be used in soil container gardens. When cultivating fruiting and flowering plants in soil, growers usually need to double or triple phosphorous levels, unlike hydroponics, thus making the 1-4-5 formula ideal for soil applications.

Botanicare PB PRO Bloom Soil qt

$30.68

$21.48

Botanicare Botanicare PB PRO Bloom qt

Designed specifically to be used in soil container gardens. When cultivating fruiting and flowering plants in soil, growers usually need to double or triple phosphorous levels, unlike hydroponics, thus making the 1-4-5 formula ideal for soil applications.

Botanicare PB PRO Bloom qt

$31.30

$18.78

Botanicare Botanicare PB PRO Bloom gal

Pure Blend Pro is a premium, one-part, natural and organic-based plant food. Pure Blend® Pro is a healthy environment-friendly alternative to commercial chemical fertilizers. Use Bloom during the fruiting and flowering stage.

Botanicare PB PRO Bloom gal

$76.03

$45.62

Botanicare Botanicare Liquid Karma - qt

Liquid Karma has a new humic source that runs cleaner, performs better and is more versatile than before. This new 100% water soluble humic acid source will not cause buildup in lines, clog drippers or contribute to pH fluctuations. Liquid Karma contains

Botanicare Liquid Karma - qt

$38.64

$23.19

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

Botanicare Botanicare Cal-Mag Plus - gal

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 - gal

$59.90

Botanicare Botanicare Cal-Mag Plus - 2.5 gal

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 - 2.5 gal

$130.57

$78.35

Block Covers 6" Pack/40

Dual-purpose Block Covers reflect light back towards plants in addition to protecting them from algae growth. Black on one side, white on the other, these block covers will work with any media. There are 40 covers in each pack.

Block Covers 6" Pack/40

$27.55

Black & White Plastic/ Poly Film 10' X 10' Sheet

The black side prevents light penetration and algae or weed growth while retaining heat. The waterproof white side reflects up to 90% of the light and can be use to partition areas. Available in 5.5 mil, 10' X 10', 10' x 25' sheets and 10' X 100' rolls

Black & White Plastic/ Poly Film 10' X 10' Sheet

$14.99

Seed Savers Tomato - Gold Medal

From Ohio tomato collector, Ben Quisenberry, who described it in his 1976 catalog: The sweetest tomato you ever tasted. The yellow with streaks of red makes them very attractive and a gourmets joy when sliced. Our finest bi-colored tomato orange-yellow sp

Tomato - Gold Medal

$3.99

Seed Savers Herb - Thyme (organic)

(Thymus vulgaris) One of the most versatile herbs used in cooking, can be used to season any meat or vegetable. Plants grow 6-12" tall with a sprawling habit. Perennial in zones 5-8.

Herb - Thyme (organic)

$3.99

Seed Savers Tomatillo - Green Husk (organic)

(aka Mexican Husk Tomato) Prolific bushy plants are 3-4' across and almost as tall. Green 2" fruits are ripe when they burst through husks. Blended with hot peppers to make traditional Mexican green sauce. 70-80 days from transplant.

Tomatillo - Green Husk (organic)

$3.99

Seed Savers Tomato - Black Krim

Also called Black Crimea and introduced to SSE by Lars Olov Rosenstrom of Sweden. Originally from the Crimean peninsula in the Black Sea. Beefsteak fruits are a unique combination of violet-brown and purple-red they turn almost black with sufficient sunli

Tomato - Black Krim

$3.99

Seed Savers Spinach - Bloomsdale (organic)

(Spinacia oleracea) Developed in 1874 by D. Landreth & Sons seed company of Philadelphia. Vigorous upright plants with dark green, glossy, savoyed leaves. Fine quality, very tender, excellent flavor. Quick growing variety with heavy yields. Well adapted f

Spinach - Bloomsdale (organic)

$3.99

Seed Savers Leek - Blue Solaise

(aka Bleu de Solaise) Beautiful 19th century French historic variety with truly blue-colored leaves that turn violet after a cold spell. Very large 15-20" stalks are sweet and flavorful. Extremely hardy, good for short-season areas and winter harvest. 100

Leek - Blue Solaise

$3.99

Seed Savers Kale - Red Russian (organic)

(Brassica napus) (aka Ragged Jack) One of the hardiest and most tender-leaved of all kales, this variety is originally from Siberia and was brought to Canada by Russian traders around 1885. Its beautiful, frilly, purple-veined, blue-green leaves are tinge

Kale - Red Russian (organic)

$3.99