Please note that the Museum will be closing at noon on Wednesday, September 9, 2026 for a staff appreciation event. (Art Institute classes are not affected by the closure.)

The Ajo Mountains in Organ Pipe Cactus National Monument. While many plants bloom during the summer rainy season, most of the larger species use this season to produce vegetative growth.


Silhouette Icon
CESD Homepage Regional Natural History and Image Galleries Desert in Bloom Articles from sonorensis Desert Tortoises Our Exhibits Info for kids Common Questions