leatherback
The Treedeemer
So why do you conclude that seigens root strongly?it is very difficult to say what it is. Most probably it is a graft, as there are no branches / backbudding in the lower part.
And when i bought it, there was a second B-Seigen next to the one i bought and there it was clearly to see that it was a graft.
i ll do a pic in the coming days.
First of all, you did not propagate one, but just repot, and now you say it is not on its own roots?