Dear TFF folks, I have a few mature (2-3 yr) df plants that I'd like to "top work" and change into S8 -- never have enough of them. Questions:
1. Can I graft onto semi-hardened rootstock? The vascular cambium (spine?) seems much larger and harder than the scion I have.
2. If I cut scion into 2-3 pieces, should I let the open wound on top heal first before grafting? Is it a good idea to tape or parafilm the top?
3. For securing the grafting union, would you recommend tie or tape? Will tape increase the risk of mold?
Thank you very much!!!