Nursery stock I got a few years ago and transplanted into a training pot. Started an air layer this spring using moist sphagnum. Checked it this fall and there seems to be a little callus forming but no roots. Saw a post on Bnut that said Ryan Neil uses pure akadama with a top dressing of sphagnum, so I decided to give that a try when I repacked the girdled area. Going to leave it on for at least another full growing season. Hoping to see some roots by then, but I know pines are notoriously hard to layer. Will keep at it until either the layer grows roots or dies.
Tc
Tc