Saguaro (Carnegiea gigantea) is in the cacti family (Cactaceae). Across the U.S., iNaturalist users have logged 1,224 research-grade flowering observations of it in our sample, peaking in May.
Nationally it blooms mainly from May to May, but timing varies a lot by state and elevation — see the table below.
When to photograph Saguaro: observations by month (U.S.)
About Saguaro
The saguaro (/səˈwɑːroʊ/, Spanish pronunciation: ) (Carnegiea gigantea) is an arborescent (tree-like) cactus species in the monotypic genus Carnegiea, which can grow to be over 40 feet (12 m) tall. It is native to the Sonoran Desert in Arizona, the Mexican State of Sonora, and the Whipple Mountains and Imperial County areas of California. The saguaro blossom is the state wildflower of Arizona. Its scientific name is given in honor of Andrew Carnegie. In 1994, Saguaro National Park,...From Wikipedia via iNaturalist — article, CC BY-SA.
Saguaro by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| Arizona | 1,224 | May | May–May |
Main season = months with at least 30% of the state's peak-month count.
Related wildflowers (cacti)
Photography tips
- Photograph flowers on calm, overcast mornings to avoid wind blur and harsh shadows.
- Get low: a shallow depth of field (f/2.8–f/5.6) isolates a bloom against soft color.
- Stay on trails — trampling meadows kills plants and ruins next year's display.
- Try a kaleidoscope abstract of a single bloom with our online kaleidoscope tool.
FAQ
When is the best time to photograph Saguaro?
Nationally, May has the most observations, with the main season from May to May.
Where is Saguaro most often seen?
The most observations come from Arizona.