How do saguaros store more water after rain?

Their pleats expand like an accordion

They hold water in their spines

Saguaro Quiz: How the Giant Desert Cactus Stores Water

The iconic cactus of Western films grows only in the Sonoran Desert, and this saguaro quiz explains how it survives heat and drought. Play an interactive set of 10 questions on pleated stems, shallow roots, slow growth, first arms, lifespans of 150 years or more, night-blooming flowers, bat pollinators, Gila woodpecker nests, Saguaro National Park and protection laws.

Start Saguaro Quiz

🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 150 Seconds

Question 1 / 10 Time: 150s

Desert
In which desert do saguaros grow naturally?
Pleats
How do saguaros store more water after rain?
Roots
What are saguaro roots like?
Arms
Roughly when does a saguaro grow its first arm?
Age
How long can saguaros live?
Height
How tall can a saguaro grow?
Flower
When do saguaro flowers open?
Bats
Which animals pollinate saguaro flowers at night?
Nests
Which bird carves nesting holes in saguaros?
Law
What is true about harming saguaros in Arizona?

Explanations: answer key for all 10 questions

Q1: In which desert do saguaros grow naturally?
Answer: The Sonoran Desert
Mainly Arizona and Sonora, Mexico.
Q2: How do saguaros store more water after rain?
Answer: Their pleats expand like an accordion
The stem swells.
Q3: What are saguaro roots like?
Answer: Shallow and spread widely
They quickly catch rainwater.
Q4: Roughly when does a saguaro grow its first arm?
Answer: After about 50 to 75 years
Some never grow arms at all.
Q5: How long can saguaros live?
Answer: 150 years or more
Growth is very slow.
Q6: How tall can a saguaro grow?
Answer: Over 12 meters
It is the tallest cactus in the US.
Q7: When do saguaro flowers open?
Answer: At night, in late spring
They stay open into the next day.
Q8: Which animals pollinate saguaro flowers at night?
Answer: Long-nosed bats
Birds and bees visit by day.
Q9: Which bird carves nesting holes in saguaros?
Answer: The Gila woodpecker
The cactus seals the hole with a boot.
Q10: What is true about harming saguaros in Arizona?
Answer: It is illegal without permits
They are protected plants.

Saguaro Quiz – How the Giant Desert Cactus Stores Water

The saguaro is a giant cactus native to the Sonoran Desert in Arizona and Sonora, Mexico. Its pleated stem expands like an accordion after rain, storing large amounts of water, while shallow, wide roots catch moisture quickly.

Saguaros grow very slowly, often taking 50 to 75 years to grow a first arm. They can reach over 12 meters and live 150 years or more. Their white flowers, Arizona's state wildflower, open at night in late spring and are pollinated by bats, birds and bees.

Gila woodpeckers carve nest holes, which the cactus seals with hardened tissue called a boot. Saguaro National Park near Tucson protects large forests, and harming saguaros in Arizona is illegal without permits.

What This Quiz Teaches

Nature lovers will enjoy these questions.

Where saguaros grow
How they store water
How slowly they grow
Who pollinates them
How they are protected

Did You Know?

Saguaro fruit is eaten by people and animals.
The Tohono O'odham harvest saguaro fruit.
A full saguaro can weigh several tons.
Frost is a major threat to young saguaros.
Nurse trees shelter seedlings from sun.