There may be no more iconic plant in the United States than the stately and stoic saguaro cactus. These beautiful cacti can grow up to 40’ tall and live to be 150 years old. They won’t start growing arms until they are 75 years old and some will grow many arms in their lives. Most of the natural habitat of the saguaro is in the Sonoran Desert which straddles the U.S./Mexico border.
In 1933, President Herbert Hoover designated Saguaro National Monument which we now call the Rincon Mountain District of the park. In 1961, John F. Kennedy added the Tucson Mountain District to the Monument and in 1994 these two tracts were combined into Saguaro National Park.