The soil underneath started out as pretty clayish. I added a fair amount of gravel and Sand before putting the top layer of gravel. It's probably more on the moist side due to all of the rain we have had. The other sedums seem to be doing well. The roots are super small and almost on existent. I gave all of me sedums 3 roads on QS. I may try moving it to a pot with the same mix my container semps grow in.