VermiculiteReddMarch 12, 2024 A light, airy material used in cannabis growing to provide extra drainage. Vermiculite is a less-popular alternative to using perlite for drainage. Similar Terms Expanded perlite Coco coir Rockwool Peat moss Hydroton Similar Articles to Read... Autoflower Week By Week Pictures: Life Cycle GuideIn-Depth Journey into Organic Super Soil: All You Need to KnowWhat Are The Best Cheap LED Grow Lights For Growing Cannabis?Choosing the Right Equipment for VPD Monitoring115 Best Weed Strains of All TimeVPD in Hydroponics: Maximizing Growth Potential