How old is a saguaro cactus?

Saguaros grow slowly. According to the National Park Service, a saguaro 6 to 8 feet tall is roughly 35 to 70 years old, and healthy saguaros can live over 150 years. If a saguaro has flowers, it is at least 35 years old.

How tall do saguaros get?

Healthy saguaros grow to about 40 feet, according to the National Park Service. The tallest saguaro on record was 78 feet.

Is it illegal to touch or cut a saguaro?

Touching one isn't the legal issue, but harming one is. Arizona's native plant law lists the saguaro as a protected plant that can't be removed from public or private land without the landowner's permission and a permit. Don't carve, climb or damage them, and leave the spines alone anyway.

Can you see saguaros on an ATV tour near Scottsdale?

Yes. Our guided tours run through saguaro country in the Tonto National Forest, and the guides stop for photos with the cactus in the frame. Tours are $299 per two-seat buggy plus tax and fees.

Saguaro Cactus Facts: Age, Height and Arizona Law

Name: Desert Dog Offroad Adventures
Address: 17212 E. Shea Blvd., Fountain Hills, AZ, 85268, US
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A saguaro can live for over 150 years, grows to about 40 feet tall, and is protected by Arizona law. It also takes decades to grow arms or flowers, which is why every tall saguaro you see on a Scottsdale ride is older than anyone in the buggy. Here are the facts people ask about most, each one checked against the National Park Service or the State of Arizona.

How Old Is a Saguaro?

Slowly is the short answer. The National Park Service’s Saguaro Growth page gives these benchmarks:

Size	Approximate age
1 to 3 inches tall	5 to 10 years
2 feet tall	20 to 40 years
6 to 8 feet tall	35 to 70 years
About 40 feet	Often over 150 years

Growth depends on rainfall, so the same size can mean different ages in different places. The park notes that saguaros in its drier western district grow more slowly than in the wetter east.

When Do Saguaros Grow Arms?

Not for a long time. Per the same NPS page, arms start to appear when a saguaro is about 8 to 20 feet tall. The Organ Pipe Cactus National Monument’s saguaro page gives a range of 70 to 90 years for arms to appear, and also says the first arm can take 95 to 100 years. The honest answer is that it varies with the local rainfall, so treat any single number as a rough guide.

How Tall Do They Get?

According to the NPS, healthy saguaros grow to about 40 feet, and the tallest one recorded was 78 feet. Most of the giants you pass on a trail are somewhere in between. Standing next to a 30-foot saguaro on a ridge gives you a very different sense of the desert than any photo can.

When Do Saguaros Bloom?

Flowers show up from late April to mid-June, per Saguaro National Park. The blossoms are milky white, according to Organ Pipe. Because a saguaro doesn’t flower until it’s at least 35 years old, a blooming one is already well into adulthood. For the seasons that suit a ride, see our guide to the best times of year to book an Arizona desert tour.

Why You Can’t Touch (or Take) a Saguaro

The spines are reason enough, but the law is stricter than most visitors realize. The University of Arizona Extension’s Arizona Native Plant Law summary lists the saguaro as a protected plant. Protected plants may not be removed from private or public land without the landowner’s permission and a permit, and the Arizona Department of Agriculture handles the permits and notifications.

What that means for visitors:

Don’t carve, climb, or damage a saguaro. That includes initials and “arms up” photos that involve grabbing the plant.
Never dig one up or take a piece home. Removal needs a permit, as above.
Watch your footing and your hands. Desert wildlife shelters in the shade of plants, so look before you reach. Our rattlesnake guide explains what to do.

How to Read a Saguaro on the Trail

You can estimate a saguaro’s life stage without any special tools. Start with the shape. A single tall column with no arms is usually younger than a saguaro with several. If you spot white blossoms, you’re looking at a plant that is at least 35 years old, since that is the youngest age the NPS says a saguaro flowers. Then compare it to a person: a saguaro about 6 to 8 feet tall, roughly the height of a doorway, is about 35 to 70 years old by the NPS benchmark.

That’s a fun game on a ride. Our guides will often stop beside an especially tall cactus, and having the numbers in your head makes the stop mean more. A 30-foot giant next to your buggy has been standing in that spot for a very long time.

Photo Tips for Saguaros

Shoot toward the light at golden hour. The silhouette in the photo at the top of this page is the classic shot, and the sky does most of the work.
Give the cactus room. Frame it with the mountains behind, as Four Peaks does on many of our rides. Our Four Peaks guide shows what that looks like.
Keep your distance. Take the picture from the trail rather than standing against the plant.
Bring something to include for scale. A buggy or a person next to a saguaro shows its size better than the cactus alone.

See Them Up Close, Legally

The easiest way to spend real time around saguaros is a guided ride through the Tonto National Forest, where your guide picks the stops, tells you what you’re looking at, and shoots free photos with the cactus in the frame. Our Sonoran Desert wildlife and plants guide goes deeper, and every way to tour the Sonoran Desert compares your options.


Price	$299 per two-seat buggy (about $150 per person), solo riders $199, plus tax and fees
Ages	Drivers 16+ with a license, riders 8+
Trail	20 to 25 miles, 2+ hours
Drive from Scottsdale	About 45 minutes

Ready to Meet a 150-Year-Old Cactus?

Book a guided Scottsdale ATV tour, or time it for golden hour on the sunset U-Drive tour, when the saguaros glow. Staying in Phoenix? See our Phoenix ATV tours page. Call Desert Dog Offroad Adventures at (480) 837-3966 with any questions.