Phlomoides tuberosa 'Amazone' sage leaf mullein 'Amazone' RHS Gardening mjumbo grower profile GrowDiaries How do aeroponic towers actually work? The plants grow in vertical towers with their roots hanging freely inside. Instead of soil, a fine nutrient rich mist is sprayed directly onto the roots at R Plants Nursery Presentation This is a natural shampoo plant. At least your hair's going to be clean if you're stranded in the wild