I visited Cricket Hill Gardens last weekend, and came back with some seeds and scions. I have germinated them from seed successfully in the past so it shouldn't be a problem this time around with fresh seeds.
These are supposed to be white Rockii tree peonies.
They are supposed to germinate next spring since they are still yellowish and have their moisture.
I clip off a piece of the shell with a nail clipper, and space them about 2 inches apart so they won't compete when they germinate.
I then push them down about 1 inch, and I intend to keep these inside my greenhouse where it won't get that cold over the winter.
Here are my materials for grafting. I have my bucket, bleach, grafting knife, paper towels, rubber bands, or grafting tape which both work fine for grafting.
According to Dan Furman's blog, they can be grafted in a few ways as shown in the following link. The big thing appears to be that the cambium layers of the root stock and scion need to line up in order to take. http://crickethillgarden.wordpress.com/2011/08/31/grafting-tree-peonies/http://crickethillgarden.wordpress.com/2011/08/31/grafting-tree-peonies/
It should also be at least 5 inches in length, but I think the main point is that the nurse root needs to have enough starches to power a decent sized plant, given that it takes successfully.
The scions are drenched in 10% bleach with water for 10 minutes, dried and then washed off to be ready for grafting.
Here are some of the grafts in action.
I find it easier to just cut a slit through the middle of the nurse root, then slide in the scion. I made sure these were clean cuts and that both sides were as even as possible so that the scion layer from both the root stock and scion can sit flush.
After I finished the grafts, I put them in a tin tray and filled it up with sand that is just barely enough moisture as too much can cause them to rot.
There are some newspapers to keep the moisture in. The tray is on a reptile heating pad, and I will try to get the sane temperatures around 90F for healing which should take 5-7 days. I was fortunate enough for my neighbor to allow me to dig some of her peonies out for nurse roots which are necessary for grafting. Hopefully many of these will take. If anyone has any advice, please feel free to comment.