I think the consensus has been that air layering is best when the leaves have hardened. That drives root formation where you want it.Tridents are starting to leaf out here....should I attempt layering before the leaves have hardended? Ist it possible/advisable to start on a branch while it is in the transition between bud/leaf?
Ah, OK. I think that is the problem, if you are truly cutting down to the heartwood. Someone more familiar with the technical terms might explain it better, but the reason layering works is that water and nutrients go up in the "sapwood", and back down in the layers just under the bark. So you remove the path down to the roots, and the tree makes new roots there, but is still "fed" from the original roots. If you remove all of the sapwood, there is no path from the roots to keep the top alive, the heartwood is no longer a transport mechanism (or a very poor one).yeah, I guess you would call it the heart wood
i guess its the same idea as a heating bed type of thing.
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