Happy autumn, everyone! What a summer we’ve had. A couple of hurricanes tried to drown Hawaii (I sheepishly admit, when I first heard about Hurricane Lane, I thought they were talking about something akin to Tornado Alley). The west coast burned while Wisconsin flooded. Florida’s waters turned toxic. Hurricane Florence slammed the Carolinas. Whew. Let’s rewind, shall we, to a gentler season—last April, when Eric and I spent a week in Arizona. Here in the Pacific Northwest, we’ve had such an abrupt switch of seasons that I’m glad to think about sun again.
After a few days in Phoenix, Eric and I set off for our ultimate destination of Tucson. Still excited about what we’d just seen at the Desert Botanical Garden in Phoenix, we couldn’t resist a quick stop at Bryce Thompson Arboretum State Park, near Superior, AZ (“the largest and oldest botanical garden in Arizona”). Quick only because we’d arrived an hour before closing time, and we didn’t have time to explore the entire trail system, which is extensive.

Boyce Thompson Arboretum trail map. We hiked from the parking lot to the lake and back, along the purple trail.
You might be thinking, “You’ve already seen every single plant the desert has to offer. Why go to yet another botanical garden?” True, each garden features many of the same plants, but each garden is different in scope, design, terrain, and just the feel of the place. Boyce Thompson was a very different experience than the Phoenix Desert Botanical Garden. For one thing, we were nearly the only people there so late in the afternoon, which was wonderful.
Got your sunscreen on? Walk this way …
At 323 acres, Boyce Thompson Arboretum was large enough to make me feel like we were actually setting out into the open desert. While these plant vignettes were certainly deliberately planted, they looked so natural, it was easy to think they just “happened” that way.

Agaves and golden barrel cactus.

Unsure what these are; possibly a thicket of young senita (Pachycereus schottii).
We passed the Smith Building (1925), constructed of native rhyolite, mined just across the highway. Originally the visitors center, it’s now the interpretive center. Attached greenhouses hold collections of succulents from around the world. Unfortunately, it wasn’t open late in the day.

Smith Building, 1925. The original visitors center.
Occasional ramadas such as this one provide shade for hikers.

Ramada on a hill. Yucca rostrata on the left, agaves and barrel cactus in foreground.

Saguaro cacti frame a classic view of the West.

Pipelines deliver water from Queen Creek and a cistern high above.
We walked the trail to Ayer Lake, which stores water from Queen Creek.

Ayer Lake.
Cute little lizards ran all over. This one looks like an Elegant Earless Lizard.

Cute little guy (or gal?).
Loved this sign for “Boojum Cove.” And sure enough, boojum trees appeared!

Welcome to Boojum Cove!

You can’t beat a boojum tree (Fouquieria columnaris) for weirdness.
Beautiful blue agaves … probably a variant of A. americana.

Horizontally striped Agave americana.

The prominent tubercles tell me this is a tree cholla (Cylindropuntia imbricata).

Wouldn’t want to meet this guy in a dark alley.
A little bunny let us get right up next to her to take photos.

Little cutie!
We came upon a grove (not sure that cacti come in groves, but …) of golden barrel cactus. I would have loved to grab one of those pups to take home, but TSA would not appreciate finding it in my suitcase. Golden barrels are endangered in the wild, but later I found one of my very own at Lowe’s (go figure).

Golden barrel cactus (Echinocactus grusonii), also known as Mother-in-law’s cushion. That’s so mean!

Isn’t this Agave pelona a beauty?

Nothing lives forever, including this saguaro. It’s a beautiful piece of sculpture, though.
We returned to the parking lot where they were having a plant sale. Why, oh why didn’t I buy some of these Astrophytum myriostigma? Only $5.00!

Astrophylum succulent.
Look how cool they are!

Assorted astrophytum. [Photo: Shutterstock.]
D’Arcy,
You almost make me want to visit the desert in spring. You were spot on, the heat this past summer has been more than I can handle. I’m ready to move up your way to get away from some of the incessant heat!
I hope all is well in your neck of the woods.
xo,
Karen
Hey, Karen! Good to hear from you! Well, we had the driest May-Sept on record, and higher temps than normal, so I’m afraid the PNW might not give you the relief you’re seeking! But move on up, anyway, so we can meet and be friends! 🙂
I won’t get tired of these posts. The desert is so beautiful. Thanks for sharing.
Hi Jessica … hope all’s going well for your family! At least one more desert post coming up, plus we’re going back down there again after the first of the year.
What a fascinating and beautiful place. I enjoyed the tour.
Thanks, Barbara!
Beautiful photos, D’Arcy. Love those cacti that look like fat starfish. Parts of South Africa look quite a lot like Arizona, it seems.
Thanks, Jacqui! We’ll make it a point to explore some botanical gardens when we come to SA!
wow i’ve never heard or seen of a Boojum tree! how cool! so weird. love your photos. what a beautiful place. i bet you and eric could have spent your whole vacation just there! or at least an entire day. i giggled picturing you emptying your whole suitcase and filling it with cacti 😀
Haha! Spines in the clothing would NOT be good!!