If you’re looking for a houseplant that’s as unique as it is low-maintenance, consider air plants. These quirky little curiosities are native to tropical and subtropical regions of North and South America. Instead of growing in soil, they cling to trees, rocks and even buildings. And they do it without parasitizing or harming their hosts. Since they don't have roots, air plants depend on specialized cells called trichomes that let their leaves absorb moisture and nutrients. Air plants at home need bright, indirect light. In homes with average humidity, soak them once a week in a bowl of room-temperature water for 30-60 minutes. If the home is dry, soak more often. Some of the best-known air plants include Spanish moss, sky plants and the tendrilled Xerographic air plant.
