which species for layering/air layering?
What fruit species can be layered/air layered successfully without the use of rooting hormones? I know figs take to layering very well. It seems like a pretty easy propagation method. If I knew there were other species for which it would be simple and successful, I'd like to take advantage of the possibility. I'd be interested to know about any fruits in addition to figs, but I'm particularly wondering about mulberries and hardy kiwis.