Originally Posted by Jack Daw

Sweet. Firstly, I think that this whole banana grafting thing is quite useless, but even though you might have cut your Helen's hybrid too far from the mother corm, the small youngling might still make new roots and start growing on itself. At this point I would move it inside and keep it in the warm house temperatures even overnight. Keep the soil moist, not wet and give the plant a little bit of the sun every day. Then it might catch on...

I'm also interested in that Mauro Gibo technique, mainly whether it works for you. I read it sometime in January, but never tried, as it's, according to my opinion, very unsafe and useless method. But it might work in this case in favor of the plant. If it works at all.

Good luck to you...