All Glossary

Rockwool

Inert, soilless growing medium consisting of woven, thin strand-like fibers made from molten volcanic rock and limestone, which is heated to over 2900 degrees F, extruded, and formed into slabs, cubes and blocks.

We use cookies to provide necessary site functionality and improve your experience. By using our website, you agree to our privacy policy and our conditions of use.

Privacy policy Accept