Dave, I think we need the rain coming this way, for the plants. I keep forgetting to check the pot plants as they don't retain the water as well as the ground does. lol!
You are right about the sedums being for an area under a tree, but the funny thing is that having researched and planned the area, as well as digging the grass up and letting it lie fallow for a little while, new people moved into the house behind, and the girl said that she would look after it! Actually I was pleased, and it made sense as they look out onto it, but it made me smile thinking of the time I'd spent thinking it through. lol.