Originally Posted by MattO

What I've done: I removed the cambium from about an Inch of trunk (leaving a small 1/8th inch bridge, dusted with rooting hormone and have placed dampened shredded sphagnum over the area zip-tied in place with plastic.


I am not sure why you have left a "bridge". By that do you mean a small strip where you did not remove the cambium? If so, this will cause the plant to begin healing your cut and impede the development of roots. To air layer, you want to completely remove the connection between the roots and foliage. This means removing the cambium in a ring, all the way around the trunk.


I know I could always have more light, but this combination has been sufficient so far

Obviously not, or they would not be leggy in the first place.