15% Off A Single Item
Use Code: FALL15    Shop Now

Text Us 952-260-4404

Rockwool

Grid List

Set Descending Direction

1-16 of 29

Page:
  1. 1
  2. 2
  1. Europonic Rockwool Conditioner, qt
  2. GRODAN Starter MINI-BLOCKS, 2", Pack of 24 Starter Cubes
    $9.99

    Made from molten lava that's whipped like cotton candy, rockwool is chemically and biologically inert, making it the perfect media to grow your best crops free of external contamination or influence. These 1.5" square Mini-Blocks sit in a tray (flat) without support for easy starting of seeds and cuttings. They come individually wrapped in white plastic to retain moisture and minimize algae growth. At transplanting you can remove the wrapping and transplant into any loose media such as Growcubes or coconut fiber or leave wrapping on and set on top of a larger Gro-block. Packed in easy tear away strips, labeled with instructions. Learn More
  3. GRODAN GRO-SLAB, 36" x 6" x 3"
    $6.99

    Grodan Slabs - The final stage of planting with growing blocks are the Grodan slabs. These slabs come in clearly marked UV resistant poly sleeves for ease of use. Recommended for larger, long term crops with extensive roots like peppers, tomatoes, or cucumbers. Typically, seedlings in blocks are placed onto slabs. Grodan Expert is the slab that drains the fastest because of its vertical fibers. By far the most popular slab for the hydroponic hobbyist market. Grodan Master is a special wet/dry slab. The top layer is thicker, which stays wetter, while the bottom layer stays drier. In effect it defies gravity, allowing more even distribution of moisture throughout the slab. Size: 36" x 6" x 3" Learn More
  4. GRODAN GRO-SLAB, 36" x 6" x 3" - Case of 12
    $79.99

    GRODAN GRO-SLABS™ are particularly good for growing large vine crops such as tomatoes or cucumbers. The 36" x 6" x 3" GRO-SLABS are comprised of vertical fibers, which allow for faster drainage and a drier slab. Slabs come in biodegradable UV-resistant poly sleeves which prevent algae, minimize evaporation, and prevent roots and diseases from moving easily from slab to slab. 12 case. Learn More
  5. Grodan Expert Slab 20/75 - 8 in x 3 in x 36 in
  6. HIP 20/75 Slab 8" Case of 12
  7. GRODAN GRO-SLAB, 36" x 12" x 3"
    $14.99

    GRODAN GRO-SLABS™ are particularly good for growing large vine crops such as tomatoes or cucumbers. These 12" GRO-SLABS are considered wet slabs due to their horizontal fibers. They hold more water than other slabs and can support more plants. Learn More
  8. GRODAN GRO-BLOCKS Delta 4, 3" x 3" x 2.5" w/ Holes
    $5.79

    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.

    This is a strip of eight 3"x3" x2.5" Gro-Blocks, each with pre-formed holes.

    Grodan stonewool is known for its quality, consistency and performance. 

    Learn More
  9. DM 4 Case of 384 Growing Cubes (with hole)
  10. GRODAN PRO GRO-BLOCKS Delta 6.5, 4" x 4" x 2.5" w/ Holes
  11. DM 6.5 Case 216 Growing Cubes (with hole)
  12. Growcubes 6 cu. ft. Box
  13. GRODAN GROW-CUBES, 2 cu ft.
    $41.99

    Used as a soilless medium, these tiny (1/4" square) cubes are a super clean, pathogen-free alternative to soil mixes. Plants get better nutrient uptake and excellent aeration in the root zone. Each cube has six surfaces to drain away excess water, so even if you water a lot, you’ll never get soaked roots. They’re also much lighter than other soil media or even clay pellets—your back will thank you when you need to move your pots around! Pro-tip: This bag will fill approximately 23 one-gallon containers. Learn More
  14. GRODAN A-OK Starter Plugs, 2", 50/Sheet
  15. GRODAN Starter MINI-BLOCKS, 1.5"
  16. AO 36/40 Case of 2940 Starter Cubes

Grid List

Set Descending Direction

1-16 of 29

Page:
  1. 1
  2. 2

Call Us 888-449-2739

Text Us 952-260-4404

Please wait...

Your selected product has been added to your Cart.

Continue Shopping Go To Cart