Vermicrop VermiPro Soilless Medium, 3.8 cu ftVermiPro is a soilless growing medium equipped with extremely high porosity which allows for aggressive feedings. Highly experienced gardeners designed the ultimate ratios of triple washed coco coir, the highest grade peat moss, aged softwood bark, perlite, and mycorrhizal fungi. Professional growers use VermiPro as a standalone hydroponic soilless medium, or combine their own nutrients and organic matter into VermiPro to create a custom soil blend.