I have a Pencil Tree that I've had for a few years. It's about 18" tall now, and it's wanting to fall over. I've tried firming up the soil around the base, but that doesn't seem to help much. Should I use a stake and prop it up, or should I prune it back? FYI, I'm in north Georgia, and it likes being outside during the summer and tolerates it indoors under bright lights during the winter.
