Sunshine® Advanced Super Hydro contains high levels of perlite to provide excellent drainage. Both peat moss and compost hold and release water and nutrients for optimal plant growth. This combination results in a growing mix that is adapted for a wide range of conditions. Our organic nutrient pack and worm castings give just enough starter fertilizer to get your plants going. And our endomycorrhizal blend enhances the ability of plants to access the nutrients in the root zone.