Root Riot™ is a natural plant starter cube ideal for soil or hydroponics. Root Riot™ Plant Starter replacement cubes are pre-moistened so they are ready to use right out of the bag. Suitable for both propagating cuttings and starting seeds, Root Riot cubes have been shown to consistently outperform alternative media. Root Riot cubes provide the perfect environment for root initiation and development. Made from composted natural materials, these plant starter plugs have a great spongy texture which retains the perfect air/water ratio for healthy, rapid root growth.