Once a year, the night-blooming cereus wows us with white, palm-sized flowers that blossom at dusk and wilt before sunrise. And we love her. Also known as Peniocereus greggi var. transmontanus or ...

One day each summer, Tucsonans flock to Tohono Chul, walking amid the trails with headlamps lighting the way. On a normal afternoon, you might question this. But on Bloom Night, you’d wish you brought ...