Sometimes what I do is leave the plant to die down but I don't cut off the flowering stems- soon afterwards sometimes you will notice little buds down the stem- then what I do is cut off the entire stem and root it sideways in a tray of multicompost indoors- making sure the buds are touching the soils surface- every one should be a new plant- and if your lucky you might notice that the buds may have little roots already growing out ready to separate from the parent plant naturally, its a lazy way of doing it without leaf cuttings or splitting etc and using any fancy rooting powders...

Sometimes what I do is leave the plant to die down but I don't cut off the flowering stems- soon afterwards sometimes you will notice little buds down the stem- then what I do is cut off the entire stem and root it sideways in a tray of multicompost indoors- making sure the buds are touching the soils surface- every one should be a new plant- and if your lucky you might notice that the buds may have little roots already growing out ready to separate from the parent plant naturally, its a lazy way of doing it without leaf cuttings or splitting etc and using any fancy rooting powders...oh that plant has also had a name change to a bit of a mouthful "Hylotelephium telephium 'Herbstfreude'" (why they change them I don't know! lol)