Juglans regia - English Walnuts

Has anyone grown English Walnuts on their own roots? I'm air layering a couple trees. I'm having trouble finding much information about what soil conditions they need on their own roots. The most convenient place to plant one of them is
a bit wet. I would say pecan would love it, American walnut would be fine, most peach rootstocks couldn't take it. It wouldn't be in a puddle but on a small mound mostly surrounded by low ground that holds water an extra day or so.

Also, will the final size of the tree be the same as with a blackwalnut rootstock?

Walnuts over here in France can get pretty big and last a couple of hundered years I dont see many in damp areas althought this could be because they will grow once established in dry areas as their roots are very deep.

David

Thanks David! I think I found some topsoil to build it up enough.