The saguaro cactus is a large, iconic cactus native to the Sonoran Desert in the southwestern United States and Mexico. It can grow to be over 40 feet tall and live for more than 150 years. The saguaro has a distinctive appearance, with tall arms that extend upward, resembling a person raising their arms. These cacti bloom beautiful white flowers in late spring, which open at night and close by the next afternoon. The flowers are a vital food source for various pollinators, including bats and bees. The saguaro also produces red fruit, which is edible and can be used to make syrup or jam.