I live in Turkey and have a cactus garden but I am completely ignorant about them and need to find out a few things. I will start with the biggest problem at the moment. I have a columnar cactus which I have had for six years. Each year it has grown upwards, after the first year it seemed to grow 4 feet or so and is now about 18foot high. Last year it stopped growing and sent out a baby at its base and also had flowers. This year the baby is growing and the flowers are numerous. So far I would say we have had thirty they are very big about the size of a tea plate, white and pink and only last one day in bloom and seem to bloom at night. My question is what have I got and what should I do with it. Should I reduce its size or should I cut off the baby or should I leave it alone to do what it wants.