If these cuttings are like the three I received today from an ebay order, then they probably need to be potted in perlite, vermiculite or sterile potting soil soon. Mine came wrapped in a damp paper towel with rooting hormone powder clumped on the lower half inch of the stem. There are root initials growing all over the entire 8" or so stems (except where the powder is clumped). These are healthy cuttings but they are already rooting, and it sounds like yours are already leafing and likely starting roots, so I think you should pot them. That is what I am going to do, and I will try to grow them in a well lighted window this winter.