Thanks, -yeah, around here horse people doze em, so the horses don't eat the poison parts.
Jkl, thanks, I didn't think it'd be much of a good tree, but figured since I had to dig it up (posthole going there) I'd pot it, and experiment.
I really want an ornamental Japanese cherry variety, I've seen a wonderful one called Sato - Superba cultivar in a book, I'd love to know if anyone knows of growers of this type for bonsai material.