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
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
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 plugs
Cube Size: 1.5″ x 1.5″ x 1.5″
The slab includes 98 cubes.
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.
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.
