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Brew & Grow Hydroponics Gardening and Homebrewing Supplies of Chicagoland
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Rockwool

Home / Hydroponic & Organic Gardening / Growing Media and Soil / Rockwool
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Max: $400
  • Hydroponic & Organic Gardening
    • Grow Lights, Reflectors, Ballasts and Tents
    • Hydroponic Systems, Equipment and Testing
    • Plant Propagation and Seed Starting
    • Fertilizer and Plant Food
    • Growing Media and Soil
      • Rockwool
      • Potting Soil
      • Coco Coir
      • Grow Rocks
      • Soiless
      • Soil Amendments
      • Living Soil
    • Container Gardening
    • Environment Control for Indoor Gardening
    • Pest and Disease Control
    • Seeds
    • Miscellaneous and Gardening Acessories
  • Homebrewing
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
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Grodan Improved Gro-Slab 6 in x 3 in x 36 in - Case/12
$115.99
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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
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Grodan Gro Block Improved HUGO 6"x 6"x 5.8" - CASE/64
$297.99
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Grodan Grodan Grow-Cubes Large Bag  2 cu ft
Loose substrate, firm benefitsAre you looking for a porous and rigid substrate for your container cultivation? And do your cultivation methods place ease of watering high on your wish list? Then Grodan Growcube or Growchunk is the substrate for you. Groda
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Grodan Grow-Cubes Large Bag 2 cu ft
$48.23
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Grodan Grodan Gro Block Improved Big Mama 8"x 8"x 8" No Hole - Single Block
The largest block ever produced by Grodan, the Big Mama measures 8" x 8" x 8" and contains well over twice as much wool as the popular Hugo block. This block is big enough to grow a large plant for its entire life. When a plant outgrows its current block,
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Grodan Gro Block Improved Big Mama 8"x 8"x 8" No Hole - Single Block
$12.50
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Grodan Grodan Gro Block Improved GR4 Small 3"x3"x 2.6" w/ Hole Strip/8
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.
Add to cart
Grodan Gro Block Improved GR4 Small 3"x3"x 2.6" w/ Hole Strip/8
$8.99
Add to cart
Grodan Grodan Gro Block Improved HUGO  6"x 6"x 5.8"  - Single Block
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
Add to cart
Grodan Gro Block Improved HUGO 6"x 6"x 5.8" - Single Block
$5.99
Add to cart
Grodan Grodan Improved Gro-Slab  6 in x 3 in x 36 in -  Single
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
Add to cart
Grodan Improved Gro-Slab 6 in x 3 in x 36 in - Single
$11.99
Add to cart
Grodan Grodan Expert Gro-Slab 8 in x 3 in x 36 in
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
Add to cart
Grodan Expert Gro-Slab 8 in x 3 in x 36 in
$17.29
Add to cart
Grodan Grodan Expert Gro-Slab 8 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
Add to cart
Grodan Expert Gro-Slab 8 in x 3 in x 36 in Case/12
$171.73
Add to cart
Grodan Grodan Grow-Cubes, 5.07 cu ft (loose in box)
Loose substrate, firm benefitsAre you looking for a porous and rigid substrate for your container cultivation? And do your cultivation methods place ease of watering high on your wish list? Then Grodan Growcube or Growchunk is the substrate for you. Groda
Add to cart
Grodan Grow-Cubes, 5.07 cu ft (loose in box)
$154.99
Add to cart
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.
Add to cart
Grodan Gro Block Improved GR10 Large 4"x4"x4" w/ Hole - Case/144 Blocks
$204.99
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Grodan Grodan Gro Block Improved GR10 Large 4"x4"x4" w/ Hole -  Strip/6
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.
Add to cart
Grodan Gro Block Improved GR10 Large 4"x4"x4" w/ Hole - Strip/6
$10.99
Add to cart
Grodan Grodan Delta 4G No Hole Strip/8
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.
Add to cart
Grodan Delta 4G No Hole Strip/8
$8.79
Add to cart
Grodan Grodan Gro Block Improved GR4 Small 3"x3"x 2.6" w/ Hole Strip/8 - Case/384
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.
Add to cart
Grodan Gro Block Improved GR4 Small 3"x3"x 2.6" w/ Hole Strip/8 - Case/384
$369.05
Add to cart
Grodan Grodan Delta 4G No Hole Case/384
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.
Add to cart
Grodan Delta 4G No Hole Case/384
$369.05
Add to cart
Grodan Grodan Gro Block Improved Big Mama 8"x 8"x 8" No Hole - Case/18
The largest block ever produced by Grodan, the Big Mama measures 8" x 8" x 8" and contains well over twice as much wool as the popular Hugo block. This block is big enough to grow a large plant for its entire life. When a plant outgrows its current block,
Add to cart
Grodan Gro Block Improved Big Mama 8"x 8"x 8" No Hole - Case/18
$195.99
Add to cart
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.
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Block Covers 6" Pack/40
$27.55
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Block Covers 4" 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.
Add to cart
Block Covers 4" Pack/40
$14.78
Add to cart


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Chicagoland's premier hydroponic and homebrewing supply store. Largest selection of grow lights, tents, soils, fertilizers, nutrients, grains, hops and yeast. Drop by our convenient retail location in the Chicago suburb of Bolingbrook, IL.
630-771-1410
[email protected]

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