Looks like a ground layer gone wrong once before.
Grafting is used to improve a nebari.
Not create one.
That's a mess.
You should put your location in your profile.
When it's time to layer...
Cut your new baseline at an angle that works best with the branching....taking care to avoid or include whatever is hiding in the back of this thing. (High root?) More scar tissue from old layer gone wrong?
Strip your bark and cambium as red.
Apply a cinch as black.
And the most important part.
Apply a RadialDisk. I used an eighth in rather ridged piece of shower liner...it could be a tile, an ice cream bucket lid, anything you can cut to shape to put at or just below the cinch, to keep your new roots growing outward.
Put the whole thing in the ground so that RadialDisk is just above soil. Then craft your pond basket, or colander around it with just an inch or so of soil, with a layer of sphagnum topper.
When the roots come out the side, you will know it is ready.
Heavy roots can be cut, thin roots can be directed into soil.
That way it's even when you dig it.
Successful use of this system on a previously potted elm.
Done as you will.
Successful use of this system on a mulberry already in the ground.
See the roots?
Now come spring....
All I gotta do is dig an inch down under the RadialDisk....
Wrap my $2 Baer Grills wire saw around there and get to pulling ....
Eff squeezing lemons!
Sorce