Tillandsia are great species for the desert terrariums as they take their moisture from the air, so they are incredibly easy to look after. They just need a spritz of water once a week. They can also benefit from a special Tillandsia spray that contains nutrients once every other week. Tillandsia have very exotic looking flowers and can be used in a variety of ways to make attractive arrangements as they do not need earth to survive. Most Airplants do not require potting and can be fixed to ornamental structures, shells, wood or stones.