There are more than 500 species of Tillandsia, and in particular two varieties: the "grey plants", equipped with numerous trichomes, in other words silver scales which filter sun rays and air moisture, and "green plant", which instead have none. As they can feed on air, Tillandsie in nature can be found everywhere, on rocks, trees, walls, electric poles and wires which might act as support. They have a great capacity for adaptation which facilitates their cultivation. They live well outdoor with temperatures ranging between 10 and 27°C, love breezes and the indirect sunlight, and can be kept also indoor provided that they are properly and regularly fertilized and watered. They require a moist environment and fear limescale: make sure to wet them with rainwater or purified water. They are beautiful plants, so much so that the Mayans used them to adorn temples and houses, as well as for their healing properties. In fact, they have the capacity of absorbing atmospheric dust and metabolize it, thus cleaning the air: ideal to create a green isle of beauty for every house.