Gro-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.