Beggarweed is a branching, rapidly growing plant that reaches a height of about 6 feet (1.8 meters). It bears tiny bluish-purple flowers. Nitrogen-fixing bacteria grow on the plant’s roots. Farmers grow beggarweed to help restore fertility to fields. Beggarweed is native to the West Indies. It is cultivated in the southern United States and other warm regions. It sometimes grows as a weed.