Therm-o-Rock Perlite is used in soil mixes (including soil-less mediums) to improve aeration and modify the soil substructure, keeping it loose, well-draining, and defying compaction.
Therm-o-Rock Vermiculite can be used in place of soil in various settings, including seed germination, or when rooting cuttings. It encourages more rapid root growth and helps to control moisture levels.
