A Rare Desert Spectacle

CreditK Wright

Queen of the Night

This mysterious and majestic cactus flower blooms for only one night a year.

For 364 nights out of the year, the Night Blooming Cereus cactus (Peniocereus greggi) looks like a pile of dead, gray vines. However, at the beginning of the summer, the Southern Arizona heat triggers these ordinary, mundane cacti to bloom with beautiful flowers commonly referred to as the Queen of the Night.

These flowers only last a single night and begin to wilt as soon as the morning sunlight hits them. This mass bloom event occupies a special place in the hearts and imaginations of many in Southern Arizona.

2026 Bloom
Frequently Asked Questions
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2026 Queen of The Night Bloom

For the second year in a row, the bloom came early. The Queen of the Night bloomed on June 2, 2026.

These stunning images were captured during last year's bloom on June 9, 2025, courtesy of Karen McCrorey.


CreditKaren McCrorey (@thecuriousdesert) 06/09/25

Frequently Asked Questions

Where Can I Find the Queen of the Night Flowers?

Although they can be found in warmer climates all over the world, the Night-Blooming Cereus is native to southwestern North America. Today, Tohono Chul Park, located in Oro Valley, is home to the world's largest collection of these cacti. Every year, people wait anxiously and patiently for Bloom Night!

The Night Blooming Cereus can also be found naturally in sandy soils, on the banks of washes, or on hill slopes, shaded by desert shrubs or trees. Each cluster of cacti blooms simultaneously. Bloom times at different locations will most likely happen on different nights.

CreditKaren McCrorey (@thecuriousdesert) 06/09/25

How Do They Know When the Flowers Will Bloom?

In short, there is no precise way to determine when the Queens of the Night will make their appearance. Bloom Night typically happens between mid-June and mid-July, but that's as precise as it gets.

Shortly before blooming, the cacti will sprout buds that eventually become flowers. Tohono Chul publishes updates via an email newsletter and on social media about when it expects the flowers to bloom. Remember, notice can come just a few hours before the flowers open, so it's worth signing up early.

What Do I Need to Know if I Go See the Bloom?

In order to receive updates on the Queen of the Night and to be notified when they are blooming, sign up for the Bloom Watch newsletter on Tohono Chul's website, and follow their social media accounts. When you're notified that the bloom is happening, make plans to arrive at either park between 5 PM and dusk. Be sure to bring a flashlight, a camera with a flash, plenty of water to drink, and wear closed-toe walking shoes.

The flowers start blooming around 5 PM and are usually in full bloom by dusk. Once there, prepare to be amazed by the sights and smells of the arrival of the Queen of the Night.

Tohono Chul Membership

Bloom Night is a members-only event. Join the community of members during their Family Membership Drive and receive 25% off a Family Membership — just $75 for the year. Now through Tuesday, June 30, use promo code FAMILY2026 on their website, at admissions, or in the museum shops to receive the discount. This promotion is only applicable to annual memberships and does not apply to annual memberships paid monthly.

Why Do They All Bloom at Once?

The Night-Blooming Cereus is unable to self-pollinate; therefore, all the plants within a particular area must bloom at the same time to provide the greatest chance for cross-pollination.

Scientists think that the cacti use some form of chemical communication to synchronize the blooms!

CreditHailey Eisenbach

Is this the Same Night Bloomer in the Film Crazy Rich Asians?

It’s not! The flower in the movie Crazy Rich Asians is a Tan Hua plant (Epiphyllum oxypetalum). It also blooms just one night per year and was a central focus of a scene in the 2018 hit movie. The plant has its roots in Mexico and was imported to China in the 1600s.

Since that plant is also called the Queen of the Night (along with many other night bloomers) you may have gotten to this article by accident. We hope you’ll fall in love with Marana, Arizona and decide to come for a visit!

Learn More About the Queen of the Night

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