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Showing 1–12 of 28 results

Sale!

1″ Rockwool Plug – Bag of 25

$5.95 $5.36
These plugs work great for cuttings propagated in an aeroponic cloner like the EZ Clone Machines.Stonewool Plugs are a sure bet for optimum germination. They start as basalt rock and chalk that is melted, spun into cotton candy-like fibers, and finally compressed into plugs. Their fibrous structure creates an ideal air-to-water ratio. contributing to robust root development throughout the entire plug. 25 per bag. 
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Sale!

AO36 – 1.5″ Rockwool Cube – Slab

$12.95 $11.66
Made in Denmark since 1969, horticultural stonewool is widely recognized as an ideal growing substrate. Each Grodan A'Ok Starter Plug has a pre-formed hole to insure easy seed or cutting placement. Gardeners simply wait for plant roots to penetrate the bottom of each A'Ok Starter Plug before transplanting them into a larger stonewool cube or block. Grodan stonewool is known for its quality, consistency and performance. Pictured are 2 slabs of 98, one-and-a-half-inch plugsCube Size: 1.5" x 1.5" x 1.5" The slab includes 98 cubes.
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Sale!

AO36 – 1.5″ Rockwool Cube – Case

$362.95 $326.66
Made in Denmark since 1969, horticultural stonewool is widely recognized as an ideal growing substrate. Each Grodan A'Ok Starter Plug has a pre-formed hole to insure easy seed or cutting placement. Gardeners simply wait for plant roots to penetrate the bottom of each A'Ok Starter Plug before transplanting them into a larger stonewool cube or block. Grodan stonewool is known for its quality, consistency and performance. Pictured are 2 slabs of 98, one-and-a-half-inch plugsCube Size: 1.5" x 1.5" x 1.5" The case includes 30 slabs or 2940 cubes.
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Sale!

MM40 – 1.5″ Rockwool Cube – Slab

$9.00 $8.10
Similar size as the AO36 but with the MM40 each cube comes individually wrapped in paper and has a wider base. These cubes are more suited for cuttings.Stonewool is recognized the world over as the ideal hydroponics growing substrate. Grodan stonewool is known for its quality, consistency and performance. These Mini-Blocks are excellent for starting seeds and cuttings and are easily transferred to larger stonewool once roots have been established. Pictured is broken up slab of 45, one-and-a-half-inch individually wrapped cubes.Cube Size: 1.5" x 1.5" x 1.5" wrapped The slab includes 45 cubes. 
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Sale!

MM40 – 1.5″ Rockwool Cube – Case

$416.95 $375.26
Similar size as the AO36 but with the MM40 each cube comes individually wrapped in paper and has a wider base. These cubes are more suited for cuttings.Stonewool is recognized the world over as the ideal hydroponics growing substrate. Grodan stonewool is known for its quality, consistency and performance. These Mini-Blocks are excellent for starting seeds and cuttings and are easily transferred to larger stonewool once roots have been established. Pictured is broken up slab of 45, one-and-a-half-inch individually wrapped cubes.Cube Size: 1.5" x 1.5" x 1.5" wrapped The case includes 50 slabs or 2250 cubes.
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Sale!

Delta 4 – 3″ Rockwool Block – Slab

$5.95 $5.36
Stonewool is recognized the world over as the ideal hydroponics growing substrate. Seeds or cuttings are started in these Grodan Gro-Blocks and, once rooted, the blocks are transferred to a larger stonewool slab. Gro-Blocks can be planted directly into containers for soil gardening as well. Pictured is a strip of eight 3" x 3" x 2.5" Gro-Blocks, each with pre-formed holes. Grodan stonewool is known for its quality, consistency and performance.Cube Size: 3" x 3" x 2.5" with hole. The slab includes 8 cubes.
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Sale!

Delta 4 – 3″ Rockwool Block – Case

$253.95 $228.56
Stonewool is recognized the world over as the ideal hydroponics growing substrate. Seeds or cuttings are started in these Grodan Gro-Blocks and, once rooted, the blocks are transferred to a larger stonewool slab. Gro-Blocks can be planted directly into containers for soil gardening as well. Pictured is a strip of eight 3" x 3" x 2.5" Gro-Blocks, each with pre-formed holes. Grodan stonewool is known for its quality, consistency and performance.Cube Size: 3" x 3" x 2.5" with hole A case includes 48 slabs or 384 cubes.
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Sale!

Delta 4 – 3″ Rockwool Block (no hole) – Slab

$5.95 $5.36
Stonewool is recognized the world over as the ideal hydroponics growing substrate. Seeds or cuttings are started in these Grodan Gro-Blocks and, once rooted, the blocks are transferred to a larger stonewool slab. Gro-Blocks can be planted directly into containers for soil gardening as well. Pictured is a strip of eight 3" x 3" x 2.5" Gro-Blocks, solid with no holes. Grodan stonewool is known for its quality, consistency and performance.Cube Size: 3" x 3" x 2.5" No hole. The slab includes 8 cubes.
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Sale!

Delta 4 – 3″ Rockwool Block (no hole) – Case

$253.95 $228.56
Stonewool is recognized the world over as the ideal hydroponics growing substrate. Seeds or cuttings are started in these Grodan Gro-Blocks and, once rooted, the blocks are transferred to a larger stonewool slab. Gro-Blocks can be planted directly into containers for soil gardening as well. Pictured is a strip of eight 3" x 3" x 2.5" Gro-Blocks, solid with no holes. Grodan stonewool is known for its quality, consistency and performance.Cube Size: 3" x 3" x 2.5" No hole Case includes 48 slabs or 384 cubes
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Sale!

Delta 6.5 – 4″x2.5″ Rockwool Block – Slab

$5.95 $5.36
Stonewool is recognized the world over as an ideal hydroponics growing medium. Seeds or cuttings are started in these larger Grodan Gro-Blocks and, once rooted, the blocks are transferred to a larger stonewool slab. Gro-Blocks can also be planted directly into containers for soil gardening. Pictured is a strip of six 4"x4"x2.5" Gro-Blocks, each with pre-formed holes. Grodan stonewool is known for its quality, consistency and performance.Cube Size: 4" x 4" x 2.5" with hole The slab includes 6 Cubes
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Sale!

Delta 6.5 – 4″x2.5″ Rockwool Block – Case

$197.95 $178.16
Stonewool is recognized the world over as an ideal hydroponics growing medium. Seeds or cuttings are started in these larger Grodan Gro-Blocks and, once rooted, the blocks are transferred to a larger stonewool slab. Gro-Blocks can also be planted directly into containers for soil gardening. Pictured is a strip of six 4"x4"x2.5" Gro-Blocks, each with pre-formed holes. Grodan stonewool is known for its quality, consistency and performance.Cube Size: 4" x 4" x 2.5" with hole Case includes 36 slabs or 216 cubes.
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Sale!

Delta 8 – 4″x3″ Rockwool Block – Slab

$7.95 $7.16
Stonewool is recognized the world over as an ideal hydroponics growing medium. Seeds or cuttings are started in these larger Grodan Gro-Blocks and, once rooted, the blocks are transferred to a larger stonewool slab. Gro-Blocks can also be planted directly into containers for soil gardening. Pictured is a strip of six 4"x4"x3" Gro-Blocks, each with pre-formed holes. Grodan stonewool is known for its quality, consistency and performance.Cube Size: 4" x 4" x 3" with hole The slab includes 6 cubes.
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