Alfafa is perennial plant. Living from five to twelve years, depending on variety and climate. Growing to a height of 1 metre, it resembles clover with clusters of small purple flowers. t also has a deep root system, sometimes streching to 4.5 meters. This makes it very resilient, especially to droughts. Alfalfa is native to Europe and it widely grown throughout the world as forage for cattle. Like other legumes it has the ability to fix the nitrogen (N). t is most often harvested as hay, less frequently as pasture or haylage.