First of all, I know it's not called "grafting". One of my questions is, "What's it called."
When I was in my teens I learned about this technique whereby you slice into a branch on a tree or shrub at an angle, wedge something in there like a toothpick to keep the cut open, apply some root toner and wrap it in foil packed with potting soil. Then, after a few weeks or so you can cut below the foil, unwrap and plant the "branch", using lots of water and care.
What's this process called?
Is there a best time of year to do it (in central North Carolina)?
Can I do it on with a Dogwood?
Are there any general rules for what kind of plants this will work with?
Thanks in advance.