An air plant ( Tillandsia spp.) doesn't need any soil to grow because it attaches itself to another surface, like driftwood or a stone, for survival.
An air plant ( Tillandsia spp.) doesn't need any soil to grow because it attaches itself to another surface, like driftwood or a stone, for survival. The plant will absorb water and nutrients through its leaves. But, this type of plant greatly prefers an open terrarium so it doesn't drown from too much humidity.