I wonder if adding additional soil makes the crown less elevated.
I'm thinking kind of no, because the crown isn't actually going deeper, but kind of yes, because it now has more soil above it.
Let's hope that it is not too much of an issue. The soil I added was from under deciduous trees, light and full of humus. Being light is probably a good thing, but being full of organic material, this holding more water may be an issue, right?
I'm thinking that I could observe for symptoms, and if they develop, I could remove mulch and soil. I'm also thinking that the start of spring is a good time to try this, as we are heading away from our wet season here. That way, the desired roots may develop sufficiently that if I end up removing the extra soil, they will still do their thing.
What symptoms should I look for?
My soil is pretty good for nearly a foot then becomes heavy clay. I believe it's acidic, although I haven't tested it.