Field Guide to Arizona’s Sonoran Desert Wildflowers

As wildflowers blanket the desert valleys and mountainsides, spring is the most beautiful time to experience the Sonoran Desert of Arizona.

February, March, and April provide the best months for viewing the fantastic Arizona wildflower displays, with March being the definite peak.

The variety of flowers is stunning, with desert trees, cactus, and shrubs all providing their own flare to the landscape. We’ll first cover the most common Sonoran Desert wildflowers, then give out some tips about where you might see some awesome displays!

Common Arizona Wildflowers – Sonoran Desert

Brittlebush (Encelia farinosa)

The grand-daddy of Sonoran Desert wildflowers.  For most desert flowers, to see fields of them, you must travel to very specific locations.  Brittlebush is very common along most hillsides, so brilliant displays can be found in almost any corner of the Arizona desert.

A member of the sunflower family, Brittlebush is typically 2-3 feet tall with blue/gray leaves and thin stalks that can hold dozens of yellow wildflowers on each bush.  They don’t like frost, so you will find them of hillsides facing the sun.  It’s possible to see these blooming from February until April depending on the location.

Brittlebush, the little sunflowers of the Arizona desert.

Hedgehog Cactus (Echinocereus)

There are many individual species of this cactus, and are often difficult to tell apart.  When I’m out hiking in the desert, I usually lump them all into “hedgehog”.  This is a short cactus that forms clusters with dozens column shaped stems. We usually call any hedgehog cactus with red tinged spines as “strawberry Hedgehog”, while yellow tinged spines are called “golden hedgehog.”

The flower is usually pink or purple, with a funnel shape that can be up to 3 inches wide.  You can find these in almost any part of the desert, on hillsides and on valley floors alike.  The hedgehog cactus usually blooms from mid-March into early-April.

A golden hedgehog blooms pink in mid-March.

Mexican Gold Poppy (Escholtzia mexicana)

It’s not every year that this flower blooms, but when it does, it really puts on a show.  Perhaps the most famous of the Sonoran Desert wildflowers, it can blanket entire hillsides during banner years.  Forming as a small yellow cup made of four petals, this flower is simple yet elegant.

The Mexican Gold Poppy usually grows on rocky hillsides or slopes, and is most typically seen during March.  These flowers don’t grow everywhere, so you’ll have to go to specific places like Peridot Mesa, Lost Dutchman State Park, or Picacho Peak to find them.  If you wish to see the cup open, you must look for them mid-day because they only open when in direct sunlight.

Mexican Gold Poppies in the Sonoran Desert Preserve north of Phoenix.

Desert Marigold (Baileya multiradiata)

Another beautiful yellow wildflower, the Desert Marigold is somewhat similar to brittlebush in its many stalks growing from one plant.  However, the flowers are slightly larger at 2 inches in diameter and have their own distinct beauty.  It is not common but possible to see fields of these flowers, and are typically found in sandy soils atop mesas or in desert washes.

Desert Marigold in bloom along a neighborhood drainage in Peoria, Arizona.

Chuparosa (Justicia californica)

A messy-looking bush about 5 feet in height that occasionally puts out little red tube-shaped flowers.  While most of the most spectacular flowering shrubs make yellow flowers, this one adds a little different flavor when it comes out.

You may start to see these in early February and can go strong through the end of March.  It seems to like the rocky hillsides where the brittlebush also thrives.  The most fun part of this flower is that you can eat it and it tastes like cucumber!

The red, tubular flowers of the Chuparosa.

Creosote Bush (Larrea tridentata)

Creosote is one of the larger desert shrub, often standing up to six feet tall.  It’s a highly drought tolerant plant that can survive in the hottest and driest of deserts like Death Valley.  It emits a strong fragrance when it rains, often called “smell of the desert”.

It also makes tiny, rough-looking yellow flowers through the spring months.  Pure stands of creosote in full bloom can turn the parched desert slopes into gold.

Creosote bushes create yellow flowers with twisted petals.

Scorpionweed (Phacelia distans)

Also known as Blue Phacelia or Wild Heliotrope.  This is a tiny desert plant that produces tiny, blue cup-shaped flowers.  You may see Scorpionweed in a variety of places such as sandy washes or rocky slopes.

It is also known for the harsh scent that it emits when crushed, usually by the feet of passing hikers.

Scorpionweed in prosperity along a neighborhood wash.

Englemann Prickly Pear (Opuntia engelmannii)

With it’s flat, pear shaped green pads, the Englemann Prickly Pear is one of the easiest cactus for desert newcomers to identify.  While there are a few species of prickly pear in the Sonoran Desert, this one is the most common.

However, it does tend to grow at higher elevations so you will only see them rarely among the sea of teddy bear cholla, saguaro, and buckhorn.  Climb the neighboring mountainsides, and they are much more common.

These flowers are yellow and cup shaped, and shown themselves in from late March to early May.  Venture out in early summer to see their sweet pink fruit.

Three prickly pear flowers in bloom with many more ready to make an appearance.

Buckhorn and Staghorn Cholla (Opuntia Cylindropuntia)

Named for their branching segments that resemble the antlers of a male deer, these two species are common throughout the Sonoran Desert at almost any elevation.

Staghorn (Opuntia  versicolor)  often show a purple tone on the normally green segments, but Buckhorn (Opuntia  acanthocarpa) can have this coloring as well.  Buckhorn have a larger range, growing throughout the Sonoran Desert, while Staghorn only grow in the desert surrounding Tucson and down into Mexico.

To truly tell the difference between the two, the flowers are actually the best method!  Inside the flower are little string-like fibers called filaments, which hold up a yellow cap called the anther.  The Buckhorn has red filaments, while the Staghorn has green/yellow filaments.  The actual color of the cactus petals have a broad range: yellow, red, pink, purple, apricot.

Buckhorn Cholla bloom red at Picacho Peak State Park.

Giant Saguaro (Carnegiea gigantea)

The saguaro cactus is the undisputed symbol of the Sonoran Desert, and a prominent icon for the state of Arizona.  Growing upwards of 25 feet tall, and often containing dozens of upreaching arms, this cactus is a sight to behold.

Saguaro cactus flowers are big white flowers that grow on the ends of green stems.  These stems grow from atop of the arms of the cactus itself, so to seem them up-close, you must get uphill from a blooming saguaro.  Each flower blooms for an average of 24 hours, so don’t expect to come back the next day to snag a photo!  Blooming season for the saguaro is typically April and May.

A single flower blooms atop a giant saguaro.

Teddy Bear Cholla (Opuntia bigelovii)

Frank Lloyd Wright called the Teddy Bear Chola the “dangerous blonds of the desert”.  With their dark body and bright tops, these cactus look cuddly from a distance, but you don’t want to snuggle with them.  They have barbed spines that snag onto passing humans and animals alike, hence the term “jumping cactus”, so you’ll need extra caution when viewing flowers up close.

While similar in form to the other flowers of the Opuntia genus, the Teddy Bear have white color with a green tinge that makes them quite unique.  Come along in April after a wet year see them in force on the rocking slopes of dry desert mountains.

Teddy Bear Cholla know how to dress classy with their elegant white flowers.

Where to Find Sonoran Desert Wildflowers

Next, some suggestions of places to visit where good Arizona wildflower blooms tend to happen!  While you may be able to enjoy wildflowers from the roadside, finding the truly impressive displays usually requires some degree of hiking.  Before you head out, refresh your memory with hiking tips here: Simple and Safe Hiking Practices for Every Hiker.  Enjoy!

Lost Dutchman State Park – Superstition Mountains

Brittlebush and Chuparosa fill the slopes below Superstition Mountain on a rainy, foggy spring day.

This is a stunning landscape to visit any time of year!  At the footsteps of the Superstition Mountains, there are tons of trails that lead from the park into the nearby Tonto National Forest.  If you hike far enough up the Siphon Draw Trail you will enter the Superstition Wilderness, and can climb all the way up to the top of the mountain to an elevation of over 5,000 feet!

In the spring, there can be all kinds of blooms out here.   It’s often a hot spot for Brittlebush also a common place to see fields of Mexican Gold Poppies and Lupines during wet years, among others.  Highly recommended!

• Location: 6109 N Apache Trail, Apache Junction, AZ 85119
• Hours: 6AM – 8PM daily.
• Fee: $10 per vehicle fee (1-4 adults)
• Amenities: Restrooms, full service campground
• Website:  Lost Dutchman State Park

Picacho Peak State Park

A palo verde tree blooms yellow during sunset at Picacho Peak State Park.

Along the busy but empty stretch of Interstate 10 between Casa Grande and Tucson sits Picacho Peak, a jagged desert mountain that rises abruptly from the desert floor.

Picacho is another great destination regardless of wildflowers, the king attraction being a tough dayhike to the Picacho Peak summit. Oh yeah, it’s also home to an old Civil War battlefield.  In spring, it is yet another famous location for spotting the coveted but elusive Mexican Gold Poppy.

• Location: 15520 Picacho Peak Rd, Picacho, AZ 85241
• Hours: 5AM – 10PM daily.
• Fee: $7 per vehicle fee (1-4 adults).
• Amenities: Restrooms, full service campground.
• Website: Picacho Peak State Park

Catalina State Park

Mexican Gold Poppies showing their stuff at Catalina State Park. Photo Credit: Dennis Swena

We’re on a roll with the State Parks — well, we’ve got some nice ones here in Arizona!  This one is just a stone’s throw from Tucson, at the base of the towering Santa Catalina Mountains.

You’re about to have deja vu, because I’m here to tell you that Catalina is beautiful whenever you decide to go.  It’s got dramatic scenery, great hiking for beginners and experts alike, plus an almost guaranteed wildflower bonanza every spring. Another potential Poppy hot spot.

• Location:  11570 N Oracle Rd, Tucson, AZ 85737
• Hours: 10AM – 10PM daily
• Fee: $7 per vehicle fee (1-4 adults)
• Amenities: Restrooms available, as well as a full service campground.
• Website: Catalina State Park

McDowell Sonoran Preserve

Brittlebush out in full-force in the McDowell Mountains.

While the State Parks require a fee, here’s a free-bee.  Owned by the City of Scottsdale, this nature preserve has a few hundred miles of hiking trails that cross the foothills and mountaintops of the McDowell Mountains.  The Brittlebush are probably the best bet for field-covering displays, but there’s definitely variety here with occasional Poppies and all your favorite cactus.

There are many trailheads at which you may access the park, with the Gateway Trailhead being the most popular.  Also consider Lost Dog Wash to the south or Tom’s Thumb to the north.  The hike to Tom’s Thumb is a beast, but is worth it even if the flowers aren’t out.  Lost Dog Wash is perfect for those wanting a mellow experience.

• Location:  Gateway Trailhead – 18333 N Thompson Peak Pkwy, Scottsdale, AZ 85255 
• Hours: 7AM – 6PM daily
• Fee: None
• Amenities: Restrooms
• Website:  McDowell Sonoran Preserve

Bartlett Lake

Sunset over Bartlett Lake as Brittlebush mingle with cholla cactus on the hillsides.

A favorite of local photographers willing to walk the trail-less slopes in search of blooms.  Although the lake itself, nestled among the desert mountains, is very nice, it’s the hillsides above the lake that bear the wildflowers. Once you park along the roadside, you’re on your own so make sure to take care not to get lost or take a tumble down a steep slope.

The location info below lists the address for the marina on the lake, which will help you reach the area via GPS, but it’s up to you to find your way to the wildflower fields!

• Location: 20808 E Bartlett Dam Rd, Rio Verde, AZ 85263

Phoenix Sonoran Preserve

Backlit wildflowers in the Phoenix Sonoran Preserve.

A local favorite of mine, the Phoenix Sonoran Preserve is mere minutes from my house!  It doesn’t have the consistently amazing displays that seem to pop up seemingly every year at other locations, but hit it after a wet winter and you might find fields of poppies, lupine, and scorpionweed!

• Location: 1600 East Sonoran Desert Drive, Phoenix, AZ 85085
• Hours: 5AM to 7PM daily
• Fee: None
• Amenities: Restrooms
• Website: City of Phoenix

Other Arizona Wildflower Locations

There is a near unlimited number of places to view wildflowers in the Sonoran Desert.  Once the weather turns scorching hot for the summer, the Arizona high country is full of forests with their own wildflower displays as well.  Go out and explore a nearby mountain park and see what you can find.  Wildflowers also grow along the washes behind the neighborhoods and along the city canals.  Get creative and find your own wildflower wonderland!

Also consider going to a local botanical garden or arboretum, where the controlled environment may allow you to see the desert flowers outside of their normal season.  A few such places are listed below:

Desert Botanical Garden – 1201 N Galvin Pkwy, Phoenix, AZ 85008 – Open 8AM – 8PM

Boyce Thompson Arboretum – 37615 US-60, Superior, AZ 85273 – Hours Vary

Arizona-Sonora Desert Museum – 2021 N Kinney Rd, Tucson, AZ 85743 – Hours Vary

One last option is Frank Lloyd Wright’s Taliesin West in Scottsdale.  Most of the property is a private nature preserve, and you can book a Desert Walk Tour in March to see the wildflowers in bloom plus hear some wonderful talks from a nature expert.  See their site for availability and pricing.  Also, check out a piece I wrote up about Taliesin West here:  Why Every Nature Lover Should Visit Arizona’s Taliesin West

The wildflower show along the Taliesin West Desert Walk Tour.

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