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.)

Most Sonoran Desert cacti bloom in spring, but fishhook barrel (Ferocactus wislizeni) flowers during late summer. 1998 was a wet summer and the desert was very green by August. See also AZUTucsonMts37


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