CACTI IN BLOOM

For those people who  plant cacti, they would know that it takes a long time for this plant to bear flowers.  Well, it seems that the cacti in my mum's garden are flowering like nobody's business.  The pot that I am holding flowered a couple of weeks ago and now it has grown more buds.  My mum said that the buds would most probably bloom tomorrow.  Too bad, I am not in Ipoh to take photos.
In the last two pictures, you see another type of cacti plant bearing flowers as well.  Hmm ... what type of fertiliser did my mum use?