Air plant background: Air plants (Tillandsia) are wonderful unique plants. They are epiphytes and derive all the nutrients and moisture they need through their leaves. They grow gripper roots and use them to attach themselves to trees and also whatever they are mounted on. They can tolerate a very wide range of temperatures from low 30's to highs in the 90's. Air plants can't stand temperatures below freezing. If outside always move them indoors during the winter. Air plants grow wild in the rain forest and also thrive in mountain and desert regions.
Indoor air plant care:
Water: (1) If you will be growing your plants inside try to water them a couple of times a week. Water the leaves thoroughly but not so much that they stand in water. A spray mister is fine to use. There is no need to over water. Air plants do not need to be soaked in water.
Light: (2) Bright office lights are fine, but they will do better with some indirect window light. Think of air plants as shade growers and only need filtered light, no direct sun.
Air movement: (3) Make sure the plants are placed in an open area so they will get some good air quality. The leaves of the plants need to dry off after watering.
Reproduction: (4) As time goes along you will notice the plants putting on little plants (pups) at the base of the plant. This is one of the ways airplants reproduce. I usually just let them grow until they're about half the size of the mother plant and then pop them off and we have another plant.
Fertilization: (5) If you would like to fertilize your air plants there are some good products on the market. I would recommend a liquid fertilizer called Dyna-Grow (7-9-5). Mix 1/4 teaspoon with a gallon of water and spray mist the plant leaves. Use the fertilizer only once a month as directed.