Flower Moun is a city in Denton and Tarrant Counties in the U.S. state of Texas. As of the 2000 census, the city population was 50,702, although the U.S. Census Bureau 2006 estimate was 63,526. The city derives its name from the prominent 12.5-acre mound located in the southern portion of the city which is covered by wild flowers. The most widely accepted explanation for the mound is that it was a sacred ceremonial ground of Wichita Indians in the early 1800s. Though surrounded by commercial and residential development, the mound is privately owned so as to be protected from further development.