Growth Technology Root Riot 24 pcs. -cubes are used for rooting plant cuttings and starting seeds. Specially formulated using fine black peat moss, they are pH balanced and retain the beneficial properties of this natural source material. A key component of Root Riot cubes is their ability to retain moisture due to their spongy texture. This texture also provides an ideal air/water ratio to turn cuttings or seeds into healthy, young seedlings. Root Riot cubes can be used in both traditional and hydroponic gardens. Root Riot cubes remain stable in hydroponic environments and will not clog filters. Cuttings and seeds in Root Riot cubes root faster, produce healthy roots and lead to vigorous plant growth, allowing for faster and easier transplanting.