2017 Saguaro National Park -AZ

the park gets its name from the giant saguaro cactus (Carnegiea gigantea) that stand as silhouettes against the desert sky. The lifespan of a saguaro is about 150 to 175 years. These cacti can grow as tall as 50 feet and may weigh more than six tons. The cacti bloom from late April through early June, opening their flowers in the night and closing them during the high daytime temperatures.