These are grown in a very sandy/loam type of compost soil. Once established they need very little water during the summer in my Pacific Northwest conditions. From July thru Sept are very dry with low humidity. We do get a lot of winter/spring rain and very little snow. Temperatures can get into the low teens, rarely lower than that. The sedum seem to handle it all.
All three of these are easy to grow in full sun. If you live in an area with harsher summers than what I have I would give them afternoon shade, or filtered afternoon sun.