You can try but I would wait. You need a good amount of roots to allow them to be cut from main. Too little amount of roots would just make it a failure.

I would put in a pot to acclimate first to living off main but you can just stick in ground. Put in shade and slowly adapt to partial sun then full. If you must use a fertilizer, use a slow release. Too much will just kill it.

You can wait until fall when its goes dormant. Less stress on all involved.

Thanks NYPD5229. I keep reading about people getting starts from clippings and I guess I was thinking more along those lines when I said root ball. It has all these sprouts coming up and I guess I was thinking of clipping them off to start them somehow.