The extreme heat in Phoenix is withering some of its famed saguaro cactuses, with no end in sight
Associated PressPHOENIX — After recording the warmest monthly average temperature for any U.S. city ever in July, Phoenix climbed back up to dangerously high temperatures Wednesday. These saguaros, a towering trademark of the Sonoran Desert landscape, were already stressed from record-breaking heat three years ago, and this summer’s historic heat — the average temperature in Phoenix last month was 102.7 degrees Fahrenheit — turned out to be the cactus needle that broke the camel’s back. “Since 2020, we have had elevated mortality in our population of saguaros compared to mortality rates pre-2020,” said Kimberlie McCue, the garden’s chief science officer. In the southern Arizona city of Tucson, which has already seen some monsoon activity, the outdoor living Sonoran Desert Museum isn’t running into the same problems with its succulents, McCue said. However, “the story isn’t complete yet.” Booth, of Moon Valley Nurseries, agreed that rain could still keep some plants and trees from reaching the point of no return.