I got into one of my wife's flower beds up at our 4,000' altitude Mountain Cottage yesterday and cut a few future[I hope] O-gauge layout trees. First frost a few weeks back so I harvested. She says a Florist told her to hang plants upside down and dry for about a month--6 weeks and then spray to "fix" the foliage in place.
Comment from the Forum's sedum-to-tree-making experts is welcome[I will search for prior posts].