Tillandsia usneoides(Spanish moss, grandfather beard)60-80cms long. Free delivery in the UK
Most recommendations are to water only when the plant is completely dry, and to give it a good soaking from the top when it needs it. Indoors, you can place a bucket overtop your Spanish moss and then pour cups full of water over the plant until it's dripping.
Light: Tillandsia usneoides requires a lot of light. Don't expose it to very strong sun, avoid full sun in the summer afternoon that will dehydrate the plant soon, unless the relative humidity is high.
ALSO KNOWN AS
Old Man's Beard, Black Moss, Florida Moss, Hanging Moss