Our revolutionary hexagon cells in this greenhouse kit encourage a better and stronger root system! The newly formed roots of a seedling are in search of water. With a typical shaped cylindrical cell, the roots grow down and in a circle, binding up into themselves. In our hexagon cell, a root hits the hex wall and shoots straight down to locate water. Professional root development system made of recycled plastic cells to help grow 72 seedlings. This kit is ideal for seed starting up to 72 individual flowers, vegetables, or herbs. Great for beginners as well!