I bought this beauty at a car boot sale last summer when it was quite small. Since then it has grown tall and produced babies along its 'leaves' that root quite readily. As you can see, the amazing part is the beautiful multi-flower head, which appeared about a month ago in yellow, which - as it faded - produced a lower layer of equally beautiful flowers but this time in a sort of salmon pink. It seems to be a type of cactus. I kept it outside during the summer, bringing it into the conservatory in the autumn, where it has remained ever since as it will be too tall and ungainly to put outside. I haven't got a clue what it is, or how to care for it. Can anyone help please?