Students from The Lamplighter School are flexing their green thumbs yet again. Earlier this year, the fourth grade class learned about aeroponics, a system that allows plants to grow without soil. The kids created a few aeroponics towers, both on campus and at the Dallas Arboretum. The Arboretum recently placed a plaque in front of the systems to thank the kids for their efforts. See the towers for yourself in the edible garden.