Christmas cactus flowers falling off, usually following a brief period of wilting, is often caused by underwatering. While plants hate to have soggy roots, they do need moisture to thrive and flower.

Whipple cholla (Natalie Burt) Confessions of a cactus-bloom stalker. Last spring, I added prizes to my cactus-bloom list when for the first time I saw and photographed the flowers of six cacti ...

TUCSON, Ariz. (KGUN) — It’s that time of year when saguaros are blooming, so if you’re driving or walking in your neighborhood and come across a saguaro cactus flower, you might want to stop ...

Easter cactus flowers are more flat, star-shaped and tend to point upward. Holiday cactus flowers can be red, pink, peach, yellow, purple, fuchsia, salmon, orange, or white.