Great info I am in the same zone on the east side of Florida as the author, so it was really great reading for me. I am gonna put the suggested soil mixes in practice on my big adeniums I need to move them up a notch so I will try it out on them and you really don't need too much soil on the older plants because the roots and caudex take up most of the room in the pot. But they are so heavy and this soil media will make them twice as heavy. I am also gonna try cutting my plants back to the extreme to shape them and try and get more flowers. I have never cut them back I have always been afraid of the stems rotting. But I will be brave and cut away.