The Saguaro is the iconic symbol of the Sonoran Desert and the largest cactus in the United States, sometimes reaching 50 feet tall and weighing over 6 tons, most of which is stored water. A saguaro may not produce its first arm until it is 75 years old. The large, waxy white flowers open at night and must be pollinated by lesser long-nosed bats before closing the following afternoon. The Saguaro provides nest cavities used by elf owls, Gila woodpeckers, and over a dozen other bird species.
Best time to see a Saguaro Cactus
The best time to see a Saguaro Cactus is January–May, when about 64% of U.S. sightings happen, based on 54,257 research-grade iNaturalist observations.
Not certain it is a Saguaro Cactus? What plant is this? walks through what to check first and the lookalikes that catch people out.
Recent Saguaro Cactus sightings near you
Live, research-grade observations from iNaturalist. Allow location to center the map on you.
Spot a Saguaro Cactus? Identify it instantly.
Point Huck at any plant, bird, or animal for an instant ID, its rarity, and a live map of where it is being seen near you.
Get HuckGet an alert when a Saguaro Cactus is spotted
Pick a park, state, or city and we’ll email you when one turns up there. One check a day, only when there’s something new.
Free. Unsubscribe from any email. See our Privacy Policy.
Love plants? Get Huck field notes
Spotting tips, new species, and the best of what people are finding in the wild - straight to your inbox.