I would try to take one of the longer stems and wound it slightly but don't remove from the plant. Add some rooting powder to that and then make sure that part is in contact with the soil. I've had luck doing this method with lots of plants. You can sit a pot with soil in it near the mother plant and do it that way. You can tug it slightly to see if it has taken root. This is a good way to do this because the cutting is still being supported by the mother plant. Look up air layering. It is similar to that, but you won't be scraping bark off...just a small amount of the outer layer of the stem. Try to do it right below one of the nodes.
