Cold-hardy cacti. Bill’s cold hardy cactus garden in summer and winter, featuring Cylindropuntia (Opuntia) davisii and Cylindropuntia (Opuntia ) imbri. Plants and photos by Bill Hendricks, USA.
The unplanted tuber showing the flower beginning to emerge. February 19th it was 6 inches high. It grew to 12 inches by March 16th and as you can see in the next photo, it grew to 36 inches tall by March 24th.