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Rockwool

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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

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

$297.99

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

Grodan Improved Gro-Slab 6 in x 3 in x 36 in - Single

$11.99

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

Grodan Grow-Cubes Large Bag 2 cu ft

$48.23

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.

Grodan Gro Block Improved GR4 Small 3"x3"x 2.6" w/ Hole Strip/8 - Case/384

$369.05

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,

Grodan Gro Block Improved Big Mama 8"x 8"x 8" No Hole - Single Block

$12.50

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

Grodan Gro Block Improved HUGO 6"x 6"x 5.8" - Single Block

$5.99

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 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

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

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.

Block Covers 4" Pack/40

$14.78

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.

Grodan Gro Block Improved GR10 Large 4"x4"x4" w/ Hole - Strip/6

$10.99

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.

Grodan Delta 4G No Hole Strip/8

$8.79

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.

Grodan Gro Block Improved GR4 Small 3"x3"x 2.6" w/ Hole Strip/8

$8.99

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

Grodan Expert Gro-Slab 8 in x 3 in x 36 in

$17.29

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

Grodan Expert Gro-Slab 8 in x 3 in x 36 in Case/12

$171.73

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

Grodan Grow-Cubes, 5.07 cu ft (loose in box)

$154.99

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.

Grodan Delta 4G No Hole Case/384

$369.05

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,

Grodan Gro Block Improved Big Mama 8"x 8"x 8" No Hole - Case/18

$195.99