PeatReddAugust 26, 2022 Old organic matter that has partially decomposed and ends up like a rich soil. Used in many types of soils and soilless mediums. Similar Terms Humus Moss Sphagnum Organic matter Decomposed plant material 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