Seeing the saguaro bloom was the only thing I wanted for my birthday. And I got it.
Daylight pollination of the saguaro cactus
A four day weekend in Tucson, AZ and a 6am hike in the Sonoran desert chalked up the moment I was waiting for… Though the stately saguaro cacti are usually pollinated at night by bats (the Lesser Long-nosed Bat, to be exact), the blossoms remain open for a few hours each morning giving local honeybees a shot at the goodies.
mistress beek 
Wow, that is awesome. It’s rare to see Saguaros in flower for sure. I had no idea about the bats. The AZ desert has so much hidden diversity its insane !