I have had this cactus for several years and it used to bloom many beautiful yellow flowers, but last year all I got were the red "buds" but no blooms. I don't do anything except water this once every two weeks or so, so perhaps it's because it's needs fertilizer. I'm certain it's needs to be trimmed quite a bit because they are many that are pointing downwards rather than up and also wondering if the graying at the lower center of the plant is normal or if points to a problem. Thanks in advance for any advice!
