Saguaro

Family: Cactaceae
Significant Varieties: Crested, Spear
Native Range: Sonoran Desert (Arizona/Northern Mexico)
Native Habitat: gravelly slopes, rocky ridges and outwash fans
Cultural Use/Significance: The Saguaro is traditionally important to Native American groups in Arizona and Mexico. Various parts were/are used for food, medicine, and building. It is the state flower of Arizona.

Cultural Requirements
Temperature: Above freezing
Irrigation: Water deeply once a month
Humidity: 15-60%
Fertilizer: Fertilize once each spring (March)
Substrate: Well-drained soil
Light: Full Sun

References:
https://plants.usda.gov/DocumentLibrary/plantguide/pdf/cs_cagi7.pdf
https://www.desertmuseum.org/kids/facts/?animal=Saguaro%20Cactus
https://planetdesert.com/products/saguaro-cactus-carnegiea-gigantea?srsltid=AfmBOoqs7uZU3hF7CrfQSiF-rxNPFCLr3j8xXMgoEvMNaT14sDwukKJL
https://www.nps.gov/sagu/learn/nature/the-crested-saguaro.htm