I’m planning on doing a ground layer on this Siberian elm this year. The roots are super coarse and I want to get rid of the inverse taper and shorten the trunk a bit; all good reasons for a ground layer. I will wait for the first flush to harden, but should I leave all of that foliage and let the tree grow unchecked as I initiate the ground layer? It seems like that would help stimulate new root growth, but this will be my first attempt and am wondering if I’m missing anything.
Below is a pic of the tree to be layered, and below that is the start of a Siberian elm forest. I have about a dozen smaller trees I’ll add next year. Trashy and invasive trees in the wild, but indestructible and kind of nice as bonsai. I started all of these from seed and ground grew them a while.