They've arrived! After you've unpacked your plants and spent sufficient time marveling at their unique beauty, give them a good soak in a water bath for about 15-25 minutes. Shake gently to remove any excess water, and set in a spot with bright light and good air circulation to dry off.
Spanish Moss will do best in generally warm conditions (a good range is 55-87 degrees Fahrenheit). In frost-free or nearly frost-free climates they can live outside for the entire year. Like most house plants, they can be taken outside on a porch or balcony for the warm season, just don't expose them to temperature or sun extremes.
Your Spanish Moss should be watered twice per week, and 3-4 times is recommended for optimal care. If you are in a drier, hotter climate, more frequent watering or misting will be needed. You'll begin to notice that after watering, your plant's leaves will feel stiffer and full of water and they'll be softer and lighter in color when they're in need of water. Wrinkled or rolled leaves can be a sign of dehydration.
Spanish Moss should be kept where they'll receive bright, indirect sunlight or under fluorescent home/office lighting. Periods of direct sunlight are just fine, but more than a few hours of hot sun will deplete the plants of their moisture. If your plant will be in a spot with some pretty direct light, try misting them every couple of days to keep them hydrated.
THE PLANT PREFERS SHADY WARM AREAS. DIRECT SUN WILL DRY IT OUT. THE PLANT LIKES HUMIDITY. THE PLANT DOES NOT DERIVE ANY NUTRIENTS FROM THE HOST TREE. THE ONLY DAMAGE IT CAN CAUSE IS IF THE COLONY GETS SO LARGE THAT IT EITHER BLOCKS THE SUN/AIR FROM THE LIMB, OR THE COLONY GETS SO HEAVY THE WEIGHT BREAKS THE LIMB, ESPECIALLY AFTER A HEAVY RAIN/WIND EVENT.