Flowering Saguaros in Finger Rock Canyon

Some Fallen, Some Blessed

My visit to Finger Rock Canyon of the Santa Catalina Mountains filled two mornings.  On the first morning, the subject was the lower canyon as morning light filtered over the eastern ridge.

Early morning to the north / northwest looking over a 20-foot fallen Saguaro Cactus (Carnegiea gigantean), toward lower ridges of the Santa Catalina Mountains.  The saguaro is among a stand of healthy fellows, some with new growth and flowers on the tips of arms and main columns. This giant must have grown over rock through 60 years.  It was brought down when the roots weakened.  Specimens that are more reliably rooted can live to 200 years.

A clump of brittlebush shrub (Encelia farinosa) grows from the same rock.

Pima Canyon is the next over, behind that near ridge which provides similar shade.  Unlike Finger Rock Canyon, the Pima Canyon trail follows the western cliff and loses the shade much sooner.  During our three-week trip, my wife, Pam, and I visited Pima in our first week.

These photos were taken between 6:20 and 7:00 am.

Along the trail I noticed a multitude of buds on the tip of selected saguaro arms.  In a previous blog, there’s a photo of this same saguaro in the shade.  The following series captures the one blossoming top just as the sun passes over the eastern, shadowing, ridge.

The same saguaro, two minutes later…….

Here is a portion of the saguaro forest, around 7 am with the lower canyon filled with light.  There are a few foothill homes with west and southwest Tucson.  The Tucson Mountains are in the distance.

Copyright 2023 Michael Stephen Wills

Saguaro Flowers in Finger Rock Canyon

April Perfection

These photographs are a continuation of blogs from two days’ exploration of Finger Rock Canyon of the Santa Catalina Mountains, southern Arizona. Here we explore the nature of the Saguaro blossom.

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Saguaro flowers start as buds on the tip of the cactus body or arm. The specimen in the photograph below, growing in the yard of a foothills home on the border of federal land, is over 30 feet tall and, at the end of April 2011, buds are sprouting from every tip.  Look closely for opening buds and full saguaro blossoms.

Flower buds grow only from some tips and around the center, along the sides, not from the point at the very end of the tip, from which the limb grows.

These buds first appeared mid-April and are here shown in the latter stages of maturity, prior to opening.  Sometimes, the base of an arm weakens and the arm lowers close to the ground while remaining healthy.  While descending the canyon I noticed this had happened to the arm of a particularly large specimen, an arm in full flower.  This and the following photographs are from that arm.

I have read that each flower opens in the cool of the night and lasts only until the following afternoon.  Here is a fully blossomed flower with a pair of opening buds.

And more, from a different view of the same arm.

A saguaro flower in full bloom, having opened the previous night. This flower will last a single day. It will wilt in the heat of a single afternoon and close. In this brief time, flying animals will pollinate it. You can see numerous honey bees on the flowers, in a previous blog, “Saguaro Flowers in Finger Rock Canyon.”

Copyright 2023 Michael Stephen Wills

Finger Rock Canyon Morning

April Perfection

The perfection of April in Tucson is nowhere better than mornings spent in Finger Rock Canyon of the Catalina Mountains.  Oriented on a north/south axis, the eastern cliffs shed a long shadow well past 9:30 am. For early risers such as me, this means no hat and cool hiking to the canyon head: the trail hugs the eastern cliffs.

These three shots were taken 5:30 – 6:00 am mountain time (Arizona does not follow daylight savings time except on the Navajo Reservation). 

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Copyright 2023 Michael Stephen Wills