It is important to maintain Tillandsias properly the key factors are light, water, and air circulation.
Light: Lighting for Tillandsias should be bright but filtered (April – October). They should not be left in the direct sun in the summer months (this will cause the plant to become sunburned). Tillandsias love direct sun (November – March). Tillandsias may be grown in the house directly in front of a window. Fresh, moving air is advisable, but the most important care need is bright filtered light.
Water: Thoroughly wet your Tillandsia 2-3 times per week; more often in a hot, dry environment; less often in a cool, humid one. Plants should be given enough light and air circulation to dry in no longer than 4 hours after watering. Spray misting is insufficient as the sole means of watering but may be beneficial between regular watering in dry climates to increase the humidity.
If the plant is in a shell or glass, be sure to empty the water out. Tillandsias will not survive in standing water.
Air Circulation: Following each watering, Tillandsias should be given enough light and air circulation to dry in 4 hours or less. Do not keep plants constantly wet or moist.