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Hydroponic & Organic Gardening

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Grodan Grodan Improved Gro-Slab 6 in x 3 in x 36 in - Case/12

Made in Denmark since 1969, stonewool is widely recognized as the ideal growing substrate. For any growing application, stonewool offers speed, ease of use and cleanliness. Grodan stonewool is known for its quality, consistency and performance. This multi

Grodan Improved Gro-Slab 6 in x 3 in x 36 in - Case/12

$115.99

Grodan Grodan Gro Block Improved Mini Block 2" Strip/24 - Case of 1440

Grodan offers both a 1.5" and a 2" individually-wrapped starter cube. The 1.5" cubes are sold as a 3-pack of strips of 15 each, and the 2" are sold as a 2-pack of strips of 12 each. These cubes are for starting seeds or cuttings and transplanting into the

Grodan Gro Block Improved Mini Block 2" Strip/24 - Case of 1440

$554.99

Grodan Grodan Gro Block Improved Mini Block 1.5" Strip/45 - Case of 50 Strips

Grodan offers both a 1.5" and a 2" individually-wrapped starter cube. The 1.5" cubes are sold as a 3-pack of strips of 15 each, and the 2" are sold as a 2-pack of strips of 12 each. These cubes are for starting seeds or cuttings and transplanting into the

Grodan Gro Block Improved Mini Block 1.5" Strip/45 - Case of 50 Strips

$613.99

Grodan Grodan Gro Block Improved HUGO 6"x 6"x 5.8" - CASE/64

Rockwool is a state-of-the-art rooting medium used in plant propagation. Seeds or cuttings are started in small rockwool cubes and, once rooted, the cubes are transferred to a larger piece of rockwool or may be planted directly in soil. Rockwool is used i

Grodan Gro Block Improved HUGO 6"x 6"x 5.8" - CASE/64

$297.99

Grodan Grodan Gro Block Improved GR10 Large 4"x4"x4" w/ Hole - Case/144 Blocks

Made in Denmark since 1969, stonewool is widely recognized as the ideal growing substrate. For any growing application, stonewool offers speed, ease of use, and cleanliness. Grodan stonewool is known for its quality, consistency and performance.

Grodan Gro Block Improved GR10 Large 4"x4"x4" w/ Hole - Case/144 Blocks

$204.99

Botanicare Botanicare Sweet Carbo Berry gal

Sweet Berry is scientifically formulated for the biosynthesis of crucial compounds to maintain optimal metabolism and contains select carbohydrates for amplified energy, increased sugar/brix content and plant biomass, esters and bio-polyphenolic compounds

Botanicare Sweet Carbo Berry gal

$52.85

$52.85

Seed Savers Lettuce - Red Velvet (organic)

Absolutely striking appearance. Tops of leaves are solid maroon, and the backs are green tinged with maroon. SSE is proud to have reintroduced this variety in 2002. Slow to bolt. Looseleaf, 55 days. Â±28,000 seeds/oz.

Lettuce - Red Velvet (organic)

$3.99

Seed Savers Watermelon - Blacktail Mountain (organic)

Gorgeous green-black round fruits weigh 6-12 pounds. Deep scarlet flesh is super sweet, juicy, and crunchy. Perfect for short season areas; also does well in hot humid climates. Bred by SSE member Glenn Drowns in the 1970s when he lived in northern Idaho,

Watermelon - Blacktail Mountain (organic)

$3.99

Seed Savers Lettuce - Baby Oakleaf

A dwarf, compact version of Green Oakleaf. Tasty and tender medium green leaves are oakleaf-shaped with rounded lobes. Holds for an extended period. Looseleaf, 50 days. Â±31,000 seeds/oz.

Lettuce - Baby Oakleaf

$3.99

Vermiculite 8 qt Bag

A perfect soil conditioner composed of millions of cells which store air and water. No food value. Often a key ingredient in soilless potting mixes, Vermiculite is prized for its ability to retain moisture. This coarse vermiculite is especially well-suite

Vermiculite 8 qt Bag

$13.49

Integra Boost Integra Boost 67g Humidiccant 55%

Integra Boost Humidiccant uses patent pending technology that releases or absorbs moisture, maintaining relative humidity in a contained environment at or about 55% relative humidity. Each individually wrapped Integra Boost packet includes a replacement i

Integra Boost 67g Humidiccant 55%

$3.99

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 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

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 Liquid Karma - gal

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 - gal

$83.85

$50.31

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 - 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

Botanicare Botanicare 40 Gallon Reservoir - White

Designed for excellent performance and easy maintenance, Botanicare's Premium Reservoirs are true capacity with exceptional durability. These reservoirs are a reincarnation of Botanicare's original reservoir offering with the benefits of our Low Profile r

Botanicare 40 Gallon Reservoir - White

$145.14

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 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

Seed Savers Arugula - Arugula (organic)

This fast-growing, cool-season green of Mediterranean origin is ideal for salads, sandwiches, frittatas, and pizzas, and can be grown in partial shade. Its sharp, distinctive, nutty flavor is best when picked young. Self-sowing and relatively cold-toleran

Arugula - Arugula (organic)

$3.99

General Hydroponics GH FloraNectar FruitnFusion qt

General Hydroponics' scientists have formulated FloraNectar to optimize the greatest transference of sweetness and aroma into your fruits and flowers. FloraNectar contains all natural raw cane sugar, molasses, malt syrup, select plant based esters, L-amin

GH FloraNectar FruitnFusion qt

$28.33

General Hydroponics GH Flora Micro - gal

The FloraGro (2-1-6), FloraBloom(0-5-4), and FloraMicro (5-0-1) series of hydroponic fertilizers from General Hydroponics represents the collective contribution of many famous scientists in the fields of hydroponics, agriculture, and chemistry. The con

GH Flora Micro - gal

$46.07

General Hydroponics GH Flora Gro - qt

The FloraGro (2-1-6), FloraBloom (0-5-4), and FloraMicro (5-0-1) series of hydroponic fertilizers from General Hydroponics represents the collective contribution of many famous scientists in the fields of hydroponics, agriculture, and chemistry. The co

GH Flora Gro - qt

$16.63