Grodan Classic 30/75 Slab (wet), 36"x12"x3"

Gro-Slabs are for the second or third stage of a plant’s life. Slabs are available in a variety of sizes and come with instructions on the wrapping.

These slabs come in clearly marked biodegradable UV resistant poly sleeves. The poly sleeves have several functions:

  • Comfort in handling.
  • Preventing algae growth.
  • Preventing roots and diseases from moving easily from slab to slab.
  • Minimizing evaporation.
  • Enabling full saturation of the slabs before use.
  • Controlling/directing the water-run off from the slabs.

Most plants can grow in Gro-Slabs but they are particularly good for growing large vine crops such as tomatoes or cucumbers.  For plants growing outdoors during mid-day sun Gro-Slabs provide a good water buffer.

The 12” Gro-Slab is considered a wet slab due to its horizontal fibers.  It holds more water than other slabs and can support more plants than any stonewool slab.  The rest of the Gro-Slabs are all comprised of vertical fibers, which allow for faster drainage and a drier slab.

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Grodan comes in graduated sizes. Seedlings started in cubes are easily transferred to blocks and then onto slabs, if desired. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums.

 

  • Item #: RW3075
  • Manufacturer: Grodan/Pargro

Grodan Classic 30/75 Slab (wet), 36"x12"x3"

Price: $15.63
Sale Price: $14.61
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