Spanish moss, Tillandsia usneoides, is an air-rooted flowering plant that resembles beard lichen. Spanish moss is actually not a moss at all, but rather an angiosperm in the Bromeliaceae family. One of the greatest advantages of Spanish moss is that it grows very quickly and can be harvested for use as fertilizer to give other plants the nutrients that they may have leached from the soil.
Remove some moss from a tree branch with pruning shears and cut it up into small pieces.
Sprinkle the moss over the area that needs fertilizing.
Till the Spanish moss into the soil to a depth of 6 inches.