Each year, for one evening only, Tohono Chul Park opens its doors to visitors from around the world to experience the mystery, majesty and beauty of the Queen of the Night, the night-blooming cereus Peniocereus greggii. The Queen of the Night is here in abundance as Tohono Chul Park is home to the nation’s largest collection.

When the summer heat begins to build, the buds of the night-blooming cereus begin to appear. After a period of start-and-stop growth, these buds blossom in a mass blooming on one night between the end of May and late July.  Experience the magnificent Peniocereus greggii in its full glory; let your senses be touched by their gorgeous flowers and breathe in their intense and intoxicating scent.

Each year, we begin updates of the progress of bud growth and projections of bloom night starting in May, continuing until we announce the event. Because the mass blooming of the Queen of the Night happens on a different night each year we will keep you updated on “her majesties” progress through our mail notification list. To join the notification list for bloom-night, email marketing@tohonochulpark.org and ask to be added to the list.

♦ Learn more about the cereus on our grounds and see a time-lapse video of a night-blooming cereus on our Cereus Stories page.

♦ Admission is Free for members and children 12 and under. $5 admission fee for non-members.

♦During Bloom Night you’ll be able to participate in a raffle to win your own Queen of the Night, or purchase them from our greenhouse.

♦If the elegant scent of the Queen of the Night strikes your fancy we offer a line of Desert Queen Bath and Body products, imbued with the flower’s fragrance.