Products > Growing Media > Grodan Rockwool > Grodan Expert 15/100 6"x4"x36" Slab Case of 9
6 x 4 x 36 inch rockwool slab. Growing Slabs are a great choice for vegetable crops or almost any plant that needs extra support at the base. Slabs come wrapped in U.V. resistant plastic that makes a good container for the roots to thrive. A 3 foot slab could hold up to 5 plants. To use, cut a hole in the plastic the size of the rockwool cubes you use. Full the slab with water to moisten all the rockwool. Flip over the slab and cut drainage slits in the bottom across the width. Flip the slab back over and place your plants growing in cubes on the holes. The roots will grow into the slab. Water with a drip system. Case of 9.
the actual size and orientation may be different.
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