Plants That Grow Without Soil

Plants grow in the ground, and their roots absorb from the soil the water and nutrients the plants need to grow, right? You''d be surprised. Some plants seem to possess secret powers. They don''t grow in the ground. They grow on a host plant, but they''re not parasites. They get the water and nutrients they need from rain, debris on the host plant, and even the air. These amazing plants are called...