Air Plants or the posh name Tillandsias are easy to care for plants that need no soil! Their leaves have special little 'hairs' called trichomes which they use to get their nutrients and moisture from the air. However, they are indoor plants and will need some help with moisture, especially during the colder months. This means we have to spray them 1 or 2 times a week, depending on the plant. More specific care instructions are given for individual plants.