This grower is sure of this plant identification.
Spanish moss, Greybeard, Old man's beard, Air plant
Tillandsia usneoides (Spanish moss). This is a pendent, epiphytic and rootless perennial, which grows 1m tall. It will produce inconspicuous, tubular, greenish yellow or pale blue flowers in late spring to early autumn. The incurved leaves are densely covered in silvery white scales.
They are frost tender. You should plant in well-drained soil, sphagnum moss or on slabs of bark or driftwood.
Grown for their flowers or overall appearance.