I can't find out the name of a spiky green house plant I have. It looks very like an aloe but I don't think it is. It grows in clumps and has white flour at the end of a very long stalk (flowering at the moment).
They need almost no attention and even recover from my occasionally nearly drowning them. I need to search pictures really to find out what they're called. I want to find out when to bring them indoors and whether they can go in a conservatory or not over the winter.