While I'm not a stranger to this genus, with so many plants from very different regions, it's hard to know how to care for all of them and just because a plant comes from a specific location doesn't mean its care is the same as others from the same location. Case in point, I just purchased Euphorbia alfredii and Euphorbia ankarensis. Both are from Madagascar, but I don't think they are grown to other Euphorbia from this island. I know they are from the northern end. If anyone can help me out with the "How To Grow...", I'd appreciate it. Thanks.