rockm
Spuds Moyogi
I had no idea what a "Saskatoon" was. Thanks. It an Amelanchier, or as they're called down here a "shadblow" or "shadbush" (they come in bloom when the shad make their run from the Atlantic up the James River and other east coast rivers-similar to salmon). They're also called serviceberry because (supposedly) when they're in bloom, the snow had melted enough in Appalachian passes to allow traveling preachers to make their rounds to hold services for the locals, or that the ground had thawed enough to allow the dead to be buried and for preachers to hold services for them. It's in the rose family (As apples are).My thoughts as well - especially for a beginner. You would likely have to build some kind of custom box for this beast. It might have been worth it if those larger trunks were still alive and had some more movement. That was a saskatoon serviceberry, right (Amelanchier)? If so, those can make decent bonsai - especially for your climate. So you are on the right track!
Take a look at those apple trees that the previous owners wrote about and see if there are any good spots for airlayers. Apple trees often have twisty, gnarled branches that make for nice airlayer-to-bonsai transitions.
Fair to middling as bonsai. Branching isn't dense enough really, but it does bloom.